Gerard Jan van Spall

Optima Energy Group Ltd. operates as an oil trading and shipping company. The firm specializes in asset portfolio, strategic investments and bunkering. The company is headquartered in Limassol, Cyprus.

HT Global Holdings BV operates as a financial holding company with interest in financial technology companies. The company is headquartered in Amsterdam, the Netherlands.

Part of Bangchak Corp. Public Co. Ltd., Star Phoenix Geothermal JV B V is a Dutch company that owns and operates geothermal power stations. The company is based in Amsterdam, Netherlands.

Vistra Management Services (Netherlands) BV provides fiduciary and advisory services. It services include fund, real estate, international expansion, corporate and outsourcing. The company was founded in 1959 and is headquartered in Amsterdam, the Netherlands.