Blackstone Resources AG

Blackstone Resources AG is a Swiss holding company based in Baar, Canton Zug. It focuses on the battery technology and battery metals market.

Ulrich Ernst​


Ulrich Ernst has more than 40 years of experience in the areas of high-tech, real estate and mining investment. During his remarkable career, he has led various high-growth companies and has achieved a great track record. In addition, he held various management positions in listed companies and worked as a management and financial consultant for many years. Mr Ernst holds a degree in business administration lic-oec.publ. /MBA from the University of Zurich.

Michael Hingst

interims CFO

Michael Hingst holds a degree in business administration from the University of Hamburg and has more than 30 years of experience in mining and international trade. He started his career with various management positions in the areas of finance, administration and marketing consulting in large German companies such as ESSO AG, Airbus Industries as well as Barclays and Opel Bank. Mr. Hingst managed his own finance house with a focus on international investments before he became the founder and CEO of German Engineering S.A.C. in Peru. He has been COO of Blackstone Resources AG since 2014.

Serhat Yilmaz


Serhat Yilmaz has 15 years of experience in communication, marketing and project management. At Metro AG, he rose to department management within a few years. His successful founding of three start-ups left a lasting mark in the IT, media and clothing sectors. With experience as a marketing manager of global projects, he has been involved in the field of E-mobility since 2019. This also included working as CMO at Quantron AG and as CMO and CBDO at Framo.

Mohammed Yagoub

Mr Yagoub Mohammed has almost 10 years experience in Trading of commodities as Agri Commodities, Fertilizers, and mining products. He holds role of trader with such companies as Aman Lubrifiant, Keytrade Africa where he was responsible for trading for several countries. Before joining Blackstone Resources, Mr Yagoub Mohammed worked as independent consultant and managed successful trade in oil, Advised Ecom International for them trading positions and tenders procurement for West and East Africa. Mr Yagoub Mohammed have an intensive experience with African, Latin American and Russian Market and can trade in Arabic, English, Russian, French, and Italian.
subsidiary company

Blackstone Technology Holding AG

Blackstone Technology Holding AG carries out the operational business of the battery division. This includes production, research and development of 3D printing technology. She is responsible for the expansion into the USA with the support of the investors and financial partners there.

Our subsidiary, Blackstone Technology GmbH, also belongs to Blackstone Technology Holding AG. It produces sustainable and environmentally friendly lithium battery cells using the revolutionary 3D printing process. At its location in Döbeln, Saxony, it benefits from first-class infrastructure and proximity to many large vehicle and engine plants.

David Batstone

CEO Blackstone Technology Holding

David Batstone is a catalyst for positive change around the world, working with entrepreneurs and investors to create pioneering solutions. He is the visionary Founder and Senior Managing Director of Just Business, an investment banking venture. The portfolio of successful companies he has been instrumental in founding includes Business 2.0 magazine, Relocity, ReCharge Global, REBBL, House of Z , ecofashion company and Not For Sale. He is a director of Relocity, ReCharge Global, Hydra Energy and a former director of American Battery Technology Company. He holds a PhD and is Professor Emeritus at the University of San Francisco School of Management and was previously an investment banker in the technology industry.

Dr. David Flaschenträger

CTDO, Project and Product Management

Dr.-Ing. David Flaschenträger brings with him many years of experience in the field of batteries, which he acquired in managerial positions for companies such as BMZ GmbH, E-Force One AG and Quantron AG. During this time, he was responsible for energy storage projects for electromobility applications, from the idea through to series production. After studying general mechanical engineering at the Technical University of Darmstadt, Mr Flaschenträger worked for the Fraunhofer Society for around 10 years, during which time he did his doctorate in the field of technical reliability.

Holger Gritzka

CEO Blackstone Technology

Dipl.-Ing. Holger Gritzka studied electrical engineering and communications engineering at the Technical University in Dresden. He was co-founder and managing director of TerraE Holding and TerraE Engineering GmbH. Before that, he worked at thyssenkrupp System Engineering GmbH as Head of Battery Plant Technologies, at battery cell manufacturer Li-Tec as Head of Sales and at Marconi Communications GmbH as Head of Sales & Business Development Central Europe.

Marc Kruse

COO Blackstone Technology Holding

Marc Kruse is an experienced manager with more than 27 years of experience in management, R&D, engineering, manufacturing, project management, service and sales. During his activities in various parts of the world, he has developed a keen sense for the nuances of cultural diversity. Kruse’s areas of expertise include: Successful Start-Up Creation, New Business Development, Change Management, Relationship Management, Management Consulting, International Sales, Sales Management, Sales Network, International Project Management, Efficiency Improvement, Engineering for Body-in-White (BiW), Battery Assembly, Press Shops, Final Assembly Lines, Flanging Equipment, Laser Welding, Laser Soldering, and Flexible Tooling.

subsidiary company

Blackstone battery metals

Since 2019, Blackstone Resources Chile has been dedicated to finding and identifying potential areas for evaluation and exploration of lithium-rich brines. Chile’s coastal location and infrastructure give the country a natural advantage.

Blackstone Resources Chile SpA

subsidiary company

Blackstone precious metals

Through environmentally friendly mining of gold and silver, Blackstone Resources Peru will ensure a steady and reliable cash flow in the future. Our refinery is located in the coastal town of Huarmey, 230 kilometers north of Lima.

Ingo Meyer


Ingo Meyer worked for decades as an independent entrepreneur in the international gemstone trade and has more than 35 years of experience in mining. As an expert in financial consulting and portfolio management, he has worked for Deutsche Bank, Dresdner Bank, Commerzbank and Augsburger Aktienbank. Later he successfully ran his own financial house with a focus on alternative investments, especially in the area of gold and silver. Since 2014 he has been a member of the management of Blackstone Resources AG and German Engineering S.A.C. in Peru as CTO.