Brian Hugh Macmillan

Optima Solutions UK Ltd. supplies rig cooling systems. The company was founded by Jamie Oag in 1999 and is headquartered in Aberdeen, the United Kingdom.

Part of TETRA Technologies, Inc., TETRA Technologies U.K. Ltd. is a British company that produces ultra-pure zinc bromide for batteries and energy storage. Founded in 1983, the company is based in London, UK. The company also offers low carbon solutions and solids-based pills for drilling operations. The company delivers solutions to the upstream energy industry for completions fluids, water management, and production testing.

Part of TETRA Technologies, Inc., TETRA Investments Company U.K. Ltd. is a British company that provides investment services with interests in manufacturing and distribution of chemical products to the oil and gas industry. The company is based in Dyce, UK and was founded in 2011.

Part of TETRA Technologies, Inc., Optima Solutions Holdings Ltd. is a British company that supplies rig cooling systems. The company is based in Dyce, UK and was founded in 2007.