NOTE

– CONVERTIBLE NOTES – RELATED PARTIES

Loans and convertible notes payable – related parties consist of the following:

	June 30 , 2018		December 31, 2017
Convertible note due to the spouse of Bill Chaaban, President of CEN, which bears an interest at 12% per annum. This note is convertible to 867,576 common shares with a maturity date of August 17, 2020.	$	1,388,122	$	1,388,122

Convertible notes due to Harold Aubrey de Lavenu, a Director of CEN, bearing interest at 5% per annum. This note is convertible to 656,250 common shares with maturity dates between September 2018 and February 2019.		1,050,000		1,050,000

Convertible note due to Alex Tarrabain, a Director of CEN, bearing interest at 5% per annum. This note is convertible to 30,000 common shares with a maturity date of October 26, 2018.		48,000		48,000

Convertible notes due to Joseph Byrne, CEO of CEN, bearing interest at 12% per annum. This note is convertible to 140,120 common shares with a maturity date of August 17, 2020		224,191		224,191

Total loans and convertible notes payable		2,710,313		2,710,313

Less current portion		1,098,000		2,210,313

Loans and convertible notes payable, less current portion	$	1,612,313	$	500,000

March 2018,

Bill Chaaban, President of CEN, fully assigned and transferred all rights, title, and interests in his loans and related accrued interest due from CEN to his spouse.

Attributable related party accrued interest was

$465,466

and

$344,801

as of

June 30, 2018

and

December 31, 2017,

respectively. Interest expense attributable to related party convertible notes was

$61,925,

and

$61,026

for the

three

-months ended

June 30, 2018

and

2017,

respectively, and was

$123,169

and

$121,747

for the

six

-months ended

June 30, 2018

and

2017,

respectively.

These notes

may

be converted at the option of the note holder at any time after registration of CEN’s common stock upon written notice by the note holder. These notes are convertible into a total of

1,693,946

common shares.