<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>0015 - Disclosure - 9. FAIR VALUE MEASUREMENTS, CONCENTRATIONS AND RISK</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

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</LabelSeparator><Level>2</Level><ElementName>us-gaap_FairValueDisclosuresTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="From2012-12-01to2013-05-31" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;NOTE 9 - FAIR VALUE MEASUREMENTS, CONCENTRATIONS AND RISK&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;a) The Company's cash and cash equivalents,
which are carried at fair values, are classified as a level 1 financial instrument at November 30, 2012 and May 31, 2013.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;b) The Company is exposed to the following
concentrations of risk:&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Major Customers&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;Two major customers comprised 66% and 22%
of total revenue for the three months ended May 31, 2013 (three months ended May 31, 2012 - two major customers accounted for 65%
and 20% of total revenue). Two major customers comprised 60% and 24% of total revenue for the six months ended May 31, 2013 (six
months ended May 31, 2012 - two major customer comprised 54% and 28% of total revenue).&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Major Vendor&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;The Company has an exclusive agreement
to manufacture biodiesel processor equipment with Turn-Key Modular Systems Inc. (&amp;#34;Turnkey&amp;#34;). During the three and six
months ended May 31, 2013, the Company made purchases of $nil and $45,893 (three and six months ended May 31, 2012 - $2,961,750
and $2,961,750) from Turnkey. As of November 30, 2012 and May 31, 2013, the Company had accounts payable of $51,414 and $36,909
owing to Turnkey, respectively.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Economic and Political Risks&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;The Company faces a number of risks and
challenges as a result of having primary operations and marketing in Canada. Changing political climates in Canada could have a
significant effect on the Company's business.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;c) The Company's financial instruments
are exposed to certain financial risks, including credit risk, currency risk and liquidity risk.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Credit Risk&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;Credit risk is the risk of an unexpected
loss if a customer or third party to a financial instrument fails to meet its contractual obligations, and arises principally from
the Company's cash and cash equivalents and trade accounts receivable. The Company places its cash and cash equivalents with institutions
of high creditworthiness. The carrying value of the financial assets represents the maximum credit exposure.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;The Company minimizes credit risk by routinely
reviewing the credit risk of the counterparty to the arrangement and has maintained an allowance for doubtful accounts of $30,000
related to credit risk as at May 31, 2013, which is considered adequate.&amp;#160;A balance of $26,128 and $72,356 was due from a major
customer as at November 30, 2012 and May 31, 2013, respectively.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Currency Risk&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;The Company is exposed to the financial
risk related to the fluctuation of foreign exchange rates. The Company's functional currency is U.S. dollars. A significant change
in the currency exchange rates between the U.S. dollar relative to the Canadian dollar could have an effect on the Company's results
of operations, financial position and cash flows. The Company has not entered into any derivative financial instruments to manage
exposures to currency fluctuations.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;Included in selling general and administrative
expenses are foreign currency gains during the three and six months ended May 31, 2013 of $1,579 and $75,959, respectively (three
and six months ended May 31, 2012 of $30,759 and $113,922, respectively).&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Liquidity Risk&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;Liquidity risk is the risk that the Company
will not be able to meet its financial obligations as they fall due. The Company has a planning and budgeting process in place
to help determine the funds required to support the Company's normal operating requirements on an ongoing basis. The Company ensures
that there are sufficient funds to meet its short-term business requirements, taking into account its anticipated cash flows from
operations and its holdings of cash.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;As at May 31, 2013, due in large part to
the funds spent to develop, build and commission the Sombra facility as well as minimal sales of biodiesel, the Company had a working
capital deficiency of $4,434,647.&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;

&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;As described in note 1, the Company anticipates
that its Sombra facility will generate positive cash flow from operations and will operate profitably once sufficient level of
commercial operation is achieved in the second half of the current fiscal year. It is management&amp;#146;s opinion that its cash
and cash equivalents, the anticipated positive cash flow from operations and cash from additional loans, including the Term Loan
Facility disclosed in Note 13 - Subsequent Events,&amp;#160;as well as private financing which is currently under negotiations, will
be sufficient to meet the Company&amp;#146;s cash requirements for at least the next 12 months.&lt;/p&gt;

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