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Sierra Energy appoints Johan van Walsem as chief operating officer

Christian Fernsby |
Davis, Ca., USA - Sierra Energy, a gasification company that turns waste into renewable energy and fuels without burning, announced that Johan van Walsem has joined the management team as chief operating officer.


Mr. van Walsem is a veteran technology and operations executive with more than 25 years of experience commercializing new technologies and products in the chemicals, renewable energy and biomaterials industries.

Prior to joining Sierra Energy, Mr. van Walsem served as COO of Metabolix and Lygos where he led the scale-up and commercialization of biobased plastics and industrial chemicals.

Mr. van Walsem earned a Master of Chemical Engineering from the University of Pretoria in South Africa and an MBA from the University of South Africa.

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