Company Web Site: www.guygold.com

This report is based on NI 43-101 disclosures and fully diluted share counts available on: 2008-08-28. Metrics have been updated with stock price and metal prices in effect at the close of Canadian markets on 2010-09-02.

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GoldMinerPulse Most Optimistic Resource Estimate Summary (MORE):
Metrics last with prices in effect at the TSX/TSXV close on 2010-09-02

Project/Deposit	CC	MVpSh	PP%	MI%	I%	Gold
Aurora	GY	$76.29	0	70%	30%	4.58 M oz
Peters	GY	$0.96	0	45%	55%	57.43 K oz
GoldMinerPulse Metrics - Total All Projects/Deposits by Metal, prices from 2010-Sept-02
Metric / Metal						Gold
Metal Totals						4.64 M oz
Metal Prices in US$ (from 2010-09-02)						$1,251.30 per oz
Metal Value per Share (MVpSh) (Shown in US$ and based on fully diluted share count shown below)						$77.25
Percentage of Total Metal Value						100.00%
PP% | MI% | I%						0 | 70% | 30%
GoldMinerPulse Metrics - All Metals from All Projects/Deposits and Prices from 2010-Sept-02
Metal Value per Share (MVpSh)						US$77.25
Average Ore Value per Tonne						US$153.23
Metal Value Leverage (MVL)						8.57
Market Capitalization as % of Metal Value						11.7%
Recent Stock Price						C$9.5   (TSX/TSXV close on 2010-09-02.)   Conversion rate used: 1 Cnd$ = 0.949244 US$ )
Fully Diluted Share Count						75.11 M    ( Fully diluted share count taken from Guyana Goldfields Inc., Late August 2009 Presentation, Shareholdings slide, 6 of 40. )
PP% | MI% | I%						0 | 70% | 30%
Gold Metrics-- all Projects/Deposits
Average Gold Ore Grade						3.809 g/t
Market Capitalization     per oz of Gold In Ground						$146.08   US$  |   153.89   C$
Gold Eq Oz Estimate						4.64 M oz   ( 4.64 M oz are in ground)
Market Capitalization     per oz of Gold Equilavent						$146.08   US$  |   153.89   C$
See terms for more about GoldMinerPulse metrics.

GoldMinerPulse Coverage Status:

• GoldMinerPulse coverage of Guyana Goldfields Inc. is complete pending a final internal review.

(NI) 43-101 Report:

Title: Guyana Goldfields: Aurora Project Preliminary Assessment Project No.7178
Date: 2008-08 (74 pages)

Updates: Guyana Goldfields Inc., Late August 2009 Presentation, Resource & Grades slide, 20 of 40.

Project Location: Guyana, Guyana  /  Mining Region: Guiana Shield

Map View: View Guyana Goldfields Aurora project on a Google Map.

Most Optimistic Resource Estimates (MORE):

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$53.55	3.21 M oz	4.140 g/t	24.15 M t
Estimate notes: Guyana Goldfields Inc., Late August 2009 Presentation, Resource & Grades slide, 20 of 40. Cut-off grade at 0.85 g/T Au for O/P and 2.00 g/T for U/G

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$22.73	1.36 M oz	3.280 g/t	12.94 M t
Estimate notes: See notes for Indicated.

(NI) 43-101 Report:

Title: PETERS MINE PROJECT, GUYANA
Date: 2004-01-20 (74 pages)

Updates: Guyana Goldfields Inc., Late August 2009 Presentation, Resource & Grades slide, 20 of 40.

Project Location: Guyana, Guyana  /  Mining Region: Guiana Shield

Map View: View Guyana Goldfields Peters mine on a Google Map.

Most Optimistic Resource Estimates (MORE):

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$0.43	25.66 K oz	1.900 g/t	420.00 K t
Estimate notes: See p. 9 of 60 of the NI 43-101 report dated January 2004.

Metal	MVpSh	Contained Metal Quantity	Ore Grade	Ore Quantity
Gold	$0.53	31.78 K oz	2.800 g/t	353.00 K t
Estimate notes: See notes for Indicated.