SC 13D/A

SEC 1746
(2-98) Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL OMB Number: 3235-0145 Expires: October 31, 2002 Estimated average burden hours per response . . . .14.9

SCHEDULE 13D

Under the Securities Exchange Act of 1934
(Amendment No. 4)

KFx Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

48245L107

(CUSIP Number)

Ellyn Roberts

Shartsis, Friese & Ginsburg LLP

One Maritime Plaza, 18^th Floor

San Francisco, CA 94111

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

November 6, 2002

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of sections 240.13d-1(e), 240.13d-1(f) or 140.13d-1(g), check the following box. [ ]

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See section 240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only).

Westcliff Capital Management, LLC

2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) __X__
(b) ______

3. SEC Use Only

4. Source of Funds (See Instructions) _AF___

5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) ____

6. Citizenship or Place of Organization California

Number of Shares Beneficially Owned by Each Reporting Person With	7. Sole Voting Power -0-
	8. Shared Voting Power 11,331,250
	9. Sole Dispositive Power -0-
	10. Shared Dispositive Power 11,331,250

11. Aggregate Amount Beneficially Owned by Each Reporting Person 11,331,250

12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions) ______

13. Percent of Class Represented by Amount in Row (11) 24.5%

14. Type of Reporting Person (See Instructions) IA, OO

1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only).

Richard S. Spencer III

2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) __X__
(b) ______

3. SEC Use Only

4. Source of Funds (See Instructions) _AF___

5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) ____

6. Citizenship or Place of Organization United States

Number of Shares Beneficially Owned by Each Reporting Person With	7. Sole Voting Power -0-
	8. Shared Voting Power 11,331,250
	9. Sole Dispositive Power -0-
	10. Shared Dispositive Power 11,331,250

11. Aggregate Amount Beneficially Owned by Each Reporting Person 11,331,250

12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions) ______

13. Percent of Class Represented by Amount in Row (11) 24.5%

14. Type of Reporting Person (See Instructions) HC, IN

1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only).

Westcliff Public Ventures - KFx, L.P.

2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ______
(b) ___X__

3. SEC Use Only

4. Source of Funds (See Instructions) _WC___

5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) ____

6. Citizenship or Place of Organization California

Number of Shares Beneficially Owned by Each Reporting Person With	7. Sole Voting Power -0-
	8. Shared Voting Power 3,731,250
	9. Sole Dispositive Power -0-
	10. Shared Dispositive Power 3,731,250

11. Aggregate Amount Beneficially Owned by Each Reporting Person 3,731,250

12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions) ______

13. Percent of Class Represented by Amount in Row (11) 9.0%

14. Type of Reporting Person (See Instructions) PN

1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only).

Noranda Finance Inc. Retirement Plan for Affiliated Companies Trust

2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ______
(b) ___X__

3. SEC Use Only

4. Source of Funds (See Instructions) _WC___

5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) ____

6. Citizenship or Place of Organization Tennessee

Number of Shares Beneficially Owned by Each Reporting Person With	7. Sole Voting Power -0-
	8. Shared Voting Power 2,033,706
	9. Sole Dispositive Power -0-
	10. Shared Dispositive Power 2,033,706

11. Aggregate Amount Beneficially Owned by Each Reporting Person 2,033,706

12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions) ______

13. Percent of Class Represented by Amount in Row (11) 5.1%

14. Type of Reporting Person (See Instructions) EP

Item 1. Security and Issuer

This statement relates to shares of Common Stock (the "Stock") of KFx Inc. (the "Issuer"). The principal executive office of the Issuer is located at 3300 East 1^st Avenue, Suite 290, Denver, CO 80206.

Item 2. Identity and Background

The persons filing this statement and the persons enumerated in Instruction C of Schedule 13D and, where applicable, their respective places of organization, general partners, directors, executive officers and controlling persons, and the information regarding them, are as follows:

(a) Westcliff Capital Management, LLC ("Westcliff"), Richard S. Spencer III, Westcliff Public Ventures - KFx, L.P. ("Public Ventures - KFx") and Noranda Finance Inc. Retirement Plan for Affiliated Companies Trust ("Noranda", and collectively, the "Filers"). Westcliff and Mr. Spencer are filing this Schedule 13D as a group. Public Ventures KFx and Noranda are filing jointly with the other Filers, but not as members of a group, and each expressly disclaims membership in a group.

(b) The business address of the Filers is
200 Seventh Avenue, Suite 105, Santa Cruz, CA 95602 (for Westcliff, Richard S. Spencer III and Public Ventures - KFx) and 1000 Corporate Centre Drive, Suite 300, Franklin, TN 37067 (for Noranda).

(c) Present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted:

Westcliff is an investment adviser registered with the Securities and Exchange Commission. It is the general partner of and investment adviser to investment limited partnerships (including Public Ventures -- KFx), and the investment adviser to other accounts (including Noranda). Mr. Spencer is the manager and controlling owner of Westcliff.

(d) During the last five years, none of the Filers has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

(e) During the last five years, none of the Filers was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f) The citizenship of each Filer is listed on that Filer's cover page.

Item 3. Source and Amount of Funds or Other Consideration

The source and amount of funds used in purchasing the Stock were as follows:

Purchaser	Source of Funds	Amount
Westcliff	Funds under management	$9,878,549 (See note 1)
Public Ventures KFx	Working capital	$2,985,000 (See note 2)
Noranda	Working capital	$1,760,439 (See note 3)

(1) Includes funds of Public Ventures - KFx and Noranda. Total purchase price paid for 612,500 shares of the Stock purchased in open market transactions, 3,430,000 shares purchased in private placements and warrants to purchase 7,288,750 shares of the Stock issued as part of those private placements. Does not include the cost that will be incurred if all such warrants are exercised. Those warrants have an exercise price of $2.75 per share.

(2) Total purchase price paid for 1,194,000 shares of the Stock purchased in private placements and warrants to purchase 2,537,250 shares of Stock as part of those private placements. Does not include the cost that will be incurred if all such warrants are exercised. Those warrants have an exercise price of $2.75 per share.

(3) Total purchase price paid for 115,100 shares of the Stock purchased in open market transactions, 613,954 shares of the Stock purchased in private placements and warrants to purchase 1,304,652 shares as part of those private placements. Does not include the cost that will be incurred if all such warrants are exercised. Those warrants have an exercise price of $2.75 per share.

Item 4. Purpose of Transaction

Although none of the Filers has any present plans or intentions to acquire or dispose of any securities of the Issuer other than on behalf of Westcliff's advisory clients for the purpose of investment, on March 28, 2002, the Issuer granted to Westcliff the right to designate two individuals to serve as directors on the Issuer's board of directors (the "Westcliff Nominees"). If there is a vacancy in the board of directors at any time prior to the next stockholders' meeting of the Issuer at which one or more directors is to be elected, the Issuer and the board have agreed to appoint the Westcliff Nominees to the board and the executive committee of the board as soon as reasonably practicable after such board seat becomes available. The Westcliff Nominees will serve on the board and the executive committee until the next stockholders meeting at which the term of such directors expires. Thereafter, in connection with each stockholders' meeting at which the board seat occupied by one or bot h of the Westcliff Nominees is up for nomination and election, the Issuer will nominate the person(s) designated by Westcliff for election to the board and recommend to its stockholders that they vote for the Westcliff Nominees. If one or both Westcliff Nominees are elected to the board, the board will appoint the elected Westcliff Nominees to serve on the board's executive committee. The obligations of the Issuer and the board of directors to appoint the Westcliff Nominees, or to nominate the Westcliff Nominees and recommend them for election, to the board terminates immediately when Westcliff and its affiliates hold less than 400,000 shares of the Stock. Pursuant to this agreement, Richard S. Spencer III has been appointed to the Issuer's board.

Westcliff may decide to purchase at any time or times on behalf of its advisory clients (including Noranda) additional shares of Stock or other securities of the Issuer. Westcliff may at any time cause its advisory clients (including Noranda) to dispose of any or all securities of the Issuer in any lawful manner. Westcliff's advisory clients (including Noranda) reserve all of their rights as stockholders of the Issuer and may exercise those rights in any manner that they or Westcliff consider to be in the interests of such clients. Other than as described herein, none of the Filers has any present plans or proposals which relate to, or would result in, any of the transactions or events described in Item 4 of Schedule 13D.

Item 5. Interest in Securities of the Issuer

The beneficial ownership of the Stock by each Filer at the date hereof is reflected on that Filer's cover page.

The Filers have effected the following transactions in the Stock since August 21, 2002:

Name	Purchase or Sale	Date	Number of Shares	Price Per Share
Westcliff	See Note 1	09/26/02	225,000 (1)	$0.00(1)
Noranda	See Note 2	09/26/02	62,187(2)	$0.00(2)
Westcliff	Open Market Purchase	11/06/02	487,100	$1.95
Westcliff	Open Market Purchase	11/06/02	16,700	$2.2419
Noranda	Open Market Purchase	11/06/02	111,300	$1.95
Noranda	Open Market Purchase	11/06/02	3,800	$2.2419

(1) Pursuant to the terms of the Common Stock and Warrant Purchase Agreement, dated March 28, 2002 (the "Purchase Agreement") and the First Addendum to the Purchase Agreement, dated as of April 30, 2002 (the "First Addendum"), the Issuer issued penalty warrants to purchase 225,000 additional shares of Stock at no additional cost to affiliates of Westcliff and certain of Westcliff's advisory clients, including Noranda, and other investors on June 21, 2002, because the Issuer's Form S-3 to register the resale of shares of Stock purchased by such investors pursuant to the Purchase Agreement and First Addendum had not been declared effective by the Securities and Exchange Commission by that date. On September 26, 2002, after the Issuer's Form S-3 was so declared effective, the Filers agreed to return the penalty warrants to the Issuer (see Exhibit Q). This amount includes the penalty warrants returned by Noranda (see Note 2).

(2) Pursuant to the terms of the Purchase Agreement and the First Addendum, the Issuer issued penalty warrants to purchase 62,187 additional shares of Stock at no additional cost to Noranda on June 21, 2002, because the Issuer's Form S-3 to register the resale of shares of Stock purchased by Noranda pursuant to the Purchase Agreement and First Addendum had not been declared effective by the Securities and Exchange Commission by that date. On September 26, 2002, after the Issuer's Form S-3 was so declared effective, Noranda agreed to return the penalty warrants to the Issuer (see Exhibit Q).

Item 6. Contracts, Arrangement, Understandings or Relationships with Respect to Securities of the Issuer

Westcliff is the general partner of investment limited partnerships pursuant to an agreement of limited partnership with respect to each such partnership. Each of those agreements provides to Westcliff the authority, among other things, to invest the funds of those partnerships in the Stock, to vote and dispose of Stock and to file this statement on their behalf. Pursuant to each such agreement, Westcliff is entitled to allocations based on assets under management and realized and unrealized gains.

All of the Stock purchased by the Filers from the Issuer in private placements is subject to a Fourth Amended and Restated Put Agreement ("Amended Put Agreement"). The Amended Put Agreement requires the Issuer to repurchase that Stock at a price of $2.50 per share (subject to adjustment for subsequent dilutive offerings) plus 9% simple interest per year if exercised by the Westcliff Investors. If holders of two-thirds or more of the Stock purchased by the investors (including Westcliff and certain of its investment advisory clients (including Noranda) (collectively, the "Westcliff Investors") participating in the Private Placements exercise their put option and the Issuer is unable to secure the necessary funding to satisfy such exercise within the time provided by the Amended Put Agreement, then the Issuer must transfer its interests in all the shares of common stock and preferred stock of Pegasus Technologies, Inc., a majority owned subsidiary of the Issuer ("Pegasus"), to such investors (including the Westcliff Investors). The Amended Put Agreement expires at 11:59 p.m., California time, on December 23, 2002. Until the Amended Put Agreement expires, the Issuer is precluded from issuing, selling, transferring or pledging any of its interest in Pegasus and the Issuer must preclude Pegasus from transferring any rights with respect to its equity and assets without approval of holders of at least two-thirds of the Stock purchased by the investors (including the Westcliff Investors) participating in the Private Placements.

Pursuant to the Investors' Rights Agreement, subject to the First Amended Limited Liability Agreement of K-Fuel LLC, dated as of June 29, 1999, between the Issuer and Kennecott Alternative Fuels, Inc. ("Kennecott") (the "K-Fuel Agreement"), the Issuer has agreed to grant a license, through K-Fuel LLC, a joint venture owned by the Issuer and Kennecott, or cause K-Fuel LLC to grant a license, to one or more of the investors in the Private Placement ("Licensees") (or their affiliates or one or more entities that are formed by one or more of the Licensees) to develop future commercial projects, and grants to the Licensees the right to participate in any and all commercial projects in which the Issuer or its affiliates participate, in connection with the greater of the (a) construction of one or more commercial projects in the United States in which the aggregate production of K-Fuel Products (as defined in the K-Fuel Agreement) per year from such commercial projects allocable to the Licensees based on the Licensees' pro rata equity ownership interest in such commercial projects is not greater than fifty million tons and (b) construction of six commercial projects in the United States in which the Licensees (individually or as a group) take an equity interest. Such license will include any and all rights relating to such K-Fuel Technology (as defined in the K-Fuel Agreement), including all right to market all K-Fuel Products produced by the commercial project at market prices, to manage the commercial project for reasonable fees, and to supply coal and other related feedstock for any such commercial project. Notwithstanding the foregoing, Kennecott retains the right to market its share of K-Fuel Product produced by each commercial project in which Kennecott has at least a twenty percent equity interest. The Licensees agreed to pay license fees and royalties in connection with such commercial projects at the lesser of the rate applicable to a non-Kennecott project under the K-Fuel Agreement or the lowest rate charged by the Issuer and K-Fuel LLC, in the aggregate, for a non-Kennecott project.

Also, pursuant to the Investors' Rights Agreement, the Issuer agreed to grant, through K-Fuel LLC, or to cause K-Fuel LLC to grant, to the Licensees an irrevocable, transferable, exclusive right and license, with the right to grant sublicenses, to develop commercial projects and otherwise provide, manufacture, use, employ, practice, distribute, reproduce, disseminate, make, have made, sell, offer to sell, have sold, research, design, develop, market or otherwise exploit any and all rights under the K-Fuel Technology, within India. The exclusive rights and licenses granted expire on July 19, 2009; provided, however, that such rights and licenses will be extended for successive seven year terms on the achievement of certain milestones to be negotiated in good faith by the Issuer and the Licensees.

Item 7. Material to Be Filed as Exhibits

1. Exhibit A: Letter Agreement dated March 28, 2002, previously filed.
2. Exhibit B: Common Stock and Warrant Purchase Agreement, previously filed.
3. Exhibit C: Addendum to the Common Stock and Warrant Purchase Agreement, previously filed.
4. Exhibit D: Second Addendum to the Common Stock and Warrant Purchase Agreement, previously filed.
5. Exhibit E: Form of Warrant to Purchase Common Stock dated March 28, 2002, previously filed.
6. Exhibit F: Form of Warrant to Purchase Common Stock dated April 30, 2002, previously filed.
7. Exhibit G: Form of Warrant to Purchase Common Stock dated July 1, 2002, previously filed.
8. Exhibit H: Third Amended and Restated Investors' Rights Agreement, previously filed.
9. Exhibit I: Third Amended and Restated Put Agreement, previously filed.
10. Exhibit J: Third Addendum to the Common Stock and Warrant Purchase Agreement, previously filed.
11. Exhibit K: Form of Warrant to Purchase Common Stock dated July 19, 2002, previously filed.
12. Exhibit L: Fourth Addendum to the Common Stock and Warrant Purchase Agreement, previously filed.
13. Exhibit M: Fourth Amended and Restated Investors' Rights Agreement, previously filed.
14. Exhibit N: Fourth Amended and Restated Put Agreement, previously filed.
15. Exhibit O: Form of Warrant to Purchase Common Stock dated August 21, 2002, previously filed.
16. Exhibit P: Agreement Regarding Joint Filing of Statement on Schedule 13D or 13G, dated November 15, 2002.
17. Exhibit Q: Waiver of Penalty Warrants dated September 26, 2002.

SIGNATURES

After reasonable inquiry and to the best of my knowledge, I certify that the information set forth in this statement is true, complete and correct.

Dated: November 15, 2002

Westcliff Capital Management, LLC By: /s/ Richard S. Spencer, III Richard S. Spencer, III Manager	Westcliff Public Ventures-KFx, L.P. By: Westcliff Capital Management, LLC, General Partner By: /s/ Richard S. Spencer, III Richard S. Spencer, III Manager
/s/ Richard S. Spencer, III Richard S. Spencer, III	Noranda Finance Inc. Retirement Plan for Affiliated Companies Trust By: Noranda Finance Inc. Authorized Person By: /s/ A.K. Brown A.K. Brown Assistant Secretary

EXHIBIT P

AGREEMENT REGARDING JOINT FILING

OF STATEMENT ON SCHEDULE 13D OR 13G

The undersigned agree to file jointly with the Securities and Exchange Commission (the "SEC") any and all statements on Schedule 13D or Schedule 13G (and any amendments or supplements thereto) required under section 13(d) of the Securities Exchange Act of 1934, as amended, in connection with purchases by the undersigned of the securities of any issuer. For that purpose, the undersigned hereby constitute and appoint Westcliff Capital Management, LLC, a California limited liability company, as their true and lawful agent and attorney-in-fact, with full power and authority for and on behalf of the undersigned to prepare or cause to be prepared, sign, file with the SEC and furnish to any other person all certificates, instruments, agreements and documents necessary to comply with section 13(d) and section 16(a) of the Securities Exchange Act of 1934, as amended, in connection with said purchases, and to do and perform every act necessary and proper to be done incident to the exercise of the foregoing power, a s fully as the undersigned might or could do if personally present.

Dated: November 15, 2002

Westcliff Capital Management, LLC By: /s/ Richard S. Spencer, III Richard S. Spencer, III Manager	/s/ Richard S. Spencer, III Richard S. Spencer, III
Westcliff Public Ventures - KFx, L.P. By: Westcliff Capital Management, LLC General Partner By: /s/ Richard S. Spencer, III Richard S. Spencer, III Manager	Noranda Finance Inc. Retirement Plan for Affiliated Companies Trust By: Noranda Finance Inc. Authorized Person By: /s/ A.K. Brown A.K. Brown Assistant Secretary

EX-1

KFx Inc.

Waiver of Penalty Warrants

This Waiver of Penalty Warrants (this "Waiver"), is entered into as of September 26, 2002, by and among KFx Inc., a Delaware corporation (the "Company"), and the parties listed on Schedule A attached hereto (the "Investors"), with reference to the following facts:

WHEREAS, the Investors are parties to the Common Stock and Warrant Purchase Agreement, dated as of March 28, 2002, as amended by the Addendum to the Common Stock and Warrant Purchase Agreement, dated as of April 30, 2002, the Second Addendum to the Common Stock and Warrant Purchase Agreement, dated as of July 1, 2002, the Third Addendum to the Common Stock and Warrant Purchase Agreement and the First Amendment to the Third Addendum to the Common Stock and Warrant Purchase Agreement, both dated as of July 19, 2002, and the Fourth Addendum to the Common Stock and Warrant Purchase Agreement, dated as of August 21, 2002 (collectively referred to herein as the "Purchase Agreement");

WHEREAS, the Investors are parties to the Investors' Rights Agreement, dated as of March 28, 2002, as amended and restated by the First Amendment to Investors' Rights Agreement, dated as of April 18, 2002, the Amended and Restated Investors' Rights Agreement, dated as of April 30, 2002, the Second Amended and Restated Investors' Rights Agreement, dated as of July 1, 2002, the Third Amended and Restated Investors' Rights Agreement, dated as of July 19, 2002, and the Fourth Amended and Restated Investors' Rights Agreement, date as of August 21, 2002 (referred to herein as the "Investors' Rights Agreement");

WHEREAS, pursuant to the terms of the Investors' Rights Agreement, the Company was obligated to (a) file one or more registration statement(s) (or amendment(s) thereto) on or before certain specified dates for the purpose of registering under the Securities Act of 1933, as amended, all of the Registrable Securities (as defined in the Investors' Rights Agreement) for resale by, and for the account of, the Investors and (b) cause such registration statement(s) to become effective on or before certain specified dates;

WHEREAS, pursuant to the terms of the Investors' Rights Agreement, the Company was obligated to issue certain warrants (defined in the Investors' Rights Agreement as Registration Warrants, Second Registration Warrants, Third Registration Warrants and Fourth Registration Warrants and collectively referred to herein as "Penalty Warrants") to the Investors if (a) the Company did not file such registration statement(s) (or amendment(s) thereto) on or before certain specified dates or (b) such registration statement(s) were not declared effective by the SEC on or before certain specified dates;

WHEREAS, the Company issued Penalty Warrants, dated June 21, 2002, and is obligated to issue Penalty Warrants that are dated as of July 22, 2002, August 21, 2002 and August 30, 2002 (although the Company has not yet issued such Penalty Warrants);

WHEREAS, in connection with the Third Addendum to the Common Stock and Warrant Purchase Agreement, all warrants (not including for this purpose any Penalty Warrants) previously issued to the Investors pursuant to Purchase Agreement were amended and restated (and, after the closing of the transactions described in such Third Addendum, all warrants to be issued pursuant to the Purchase Agreement are to have the same terms and conditions set forth in such amended and restated warrants);

WHEREAS, in connection with the amendment and restatement of such warrants, the Investors desire to return to the Company the Penalty Warrants issued on June 21, 2002, and waive their rights to receive the yet to be issued Penalty Warrants dated as of July 22, 2002, August 21, 2002 and August 31, 2002, on the terms and conditions set forth herein.

NOW THEREFORE, in consideration of the foregoing premises and the mutual covenants and conditions set forth in this Waiver, the parties agree as follows:

1. Return and Waiver of Penalty Warrants. The Investors hereby (a) agree to return to the Company the Penalty Warrants, dated as of June 21, 2002, that have been issued to the Investors and (b) waive their rights to receive the yet to be issued Penalty Warrants dated as of July 21, 2002, August 21, 2002 and August 30, 2002.
2. Notices. Any notice, consent, authorization or other communication to be given hereunder shall be in writing and shall be deemed duly given and received when delivered personally or transmitted by facsimile transmission with receipt acknowledged by the addressee, three days after being mailed by first class mail, or the next business day after being deposited for next-day delivery with a nationally recognized overnight delivery service, charges and postage prepaid, properly addressed to the party to receive such notice at the address(es) specified in the Investors' Rights Agreement (or at such other address as shall be specified by like notice).
3. Counterparts. This Waiver may be executed in any number of counterparts, each of which shall constitute an original, and all of which together shall be considered one and the same agreement.
4. Governing Law. This Waiver shall be governed by and construed and interpreted in accordance with the law of the State of New York, without regard to that state's conflict of laws principles.
5. Attorneys' Fees. If any action at law or in equity is necessary to enforce or interpret the terms of this Waiver, the prevailing party shall be entitled to reasonable attorneys' fees, costs and necessary disbursements in addition to any other relief to which such party may be entitled.

[remainder of page intentionally left blank; signature page follows]

IN WITNESS WHEREOF, this Waiver has been duly executed by or on behalf of the parties hereto as of the date first above written.

KFx INC.

By: /s/ R.G. Swenson

Name: R. G. Swenson

Title: Vice President & Secretary

THE INVESTORS

WESTCLIFF AGGRESSIVE GROWTH, L.P. WESTCLIFF ENERGY PARTNERS, L.P. WESTCLIFF LONG/SHORT, L.P. WESTCLIFF PARTNERS, L.P. WESTCLIFF PUBLIC VENTURES FUND, L.P. WESTCLIFF PUBLIC VENTURES KFx, L.P. WESTCLIFF SMALL CAP FUND, L.P. By: Westcliff Capital Management, LLC Its: General Partner By: /s/ Richard S. Spencer III Richard S. Spencer III, Manager	WESTCLIFF FOUNDATION WESTCLIFF MASTER FUND, L.P. WESTCLIFF PROFIT SHARING AND MONEY PURCHASE PENSION PLAN CANCER CENTER OF SANTA BARBARA PALM TRUST PARKER FOUNDATION UNIVERSITY OF SAN FRANCISCO By: Westcliff Capital Management, LLC Its: Investment Adviser and Attorney-In-Fact By: /s/ Richard S. Spencer III Richard S. Spencer III, Manager
RAM TRADING, LTD. By: Ritchie Capital Management, LLC Its: Investment Adviser By: /s/ David Popovich David Popovich, Chief Financial Officer	NORANDA FINANCE, INC. RETIREMENT PLAN FOR AFFILIATED COMPANIES TRUST By: Mellon Bank, N.A., solely in its capacity as Trustee for the Noranda Finance, Inc. Retirement Plan for Affiliated Companies Trust (as directed by Westcliff Capital Management, LLC), and not in its individual capacity By: /s/ Bernadette T. Rist Bernadette T. Rist Authorized Signatory

SCHEDULE A

INVESTORS

Westcliff Aggressive Growth, L.P.
Westcliff Energy Partners, L.P.
Westcliff Long/Short, L.P.
Westcliff Partners, L.P.
Westcliff Public Ventures Fund, L.P.
Westcliff Public Ventures KFx, L.P.
Westcliff Small Cap Fund, L.P.
Westcliff Foundation
Westcliff Master Fund, L.P.
Westcliff Profit Sharing and Money Purchase Pension Plan
Cancer Center of Santa Barbara
Palm Trust
Parker Foundation
University of San Francisco
Noranda Finance, Inc. Retirement Plan
RAM Trading, Ltd.
Peninsula Fund, L.P.
Common Sense Partners, L.P.