Daniel Menzel

G.S. Stolpen GmbH & Co. KG specializes in planning and producing stove systems and kitchen furniture, as well as tailor-made stainless steel furniture for laboratories. The private company is based in Stolpen, Germany. The German company also offers solutions for the production of stove systems and kitchen furniture. The company was founded in 1903 by Ernst Uhlemann. The CEO is Jörg Schöpp.

Qatar Solar Technologies, also known as QSTEC, is a Qatari company that specializes in solar technologies. QSTEC is based in West Bay, Qatar, and the CEO of the private company is Ibrahim Jaham Abdel Aziz Al-Kuwari. The company supplies high-quality polysilicon and offer exceptional service to their customers. QSTEC is committed to sustainability, efficiency, recycling, and low waste. The company operates in various markets and has facilities for research and development. The company also prioritizes society and solar education, as well as the environment, economic growth, and health and safety.