John Sheridan

Guyana Goldfields, Inc. engages in the acquisition, exploration, development, and operation of precious metal mineral properties. It focuses on the gold deposits of Aurora Gold Mines in Guyana South America. The company was founded by John Patrick Sheridan Jr. on December 12, 1994 and is headquartered in Toronto, Canada.

Ontex Resources Ltd. engages in the acquisition and exploration of resource property. The company focused on gold resource expansion at its Brookbank gold property in Northern Ontario spanning a strike length of 35 Kilometers. The company was founded in 1945 and is headquartered in London, Canada.

Part of Zijin Mining Group Co., Ltd., Aranka Gold, Inc. mines for gold. The company is based in Toronto, Canada. Aranka Gold was acquired by Guyana Goldfields, Inc. on January 28, 2009 for $14.40 million.

Goldstone Resources, Inc. explores and mines for gold. It is engaged in the exploration and acquisition of gold properties in Northwestern Ontario. The company is headquartered in Toronto, Canada.