Green Hydrogen International and INPEX CORPORATION Agree to Advance Hydrogen City Project in South Texas

The companies will work together to develop GHI’s flagship Hydrogen City Project in South Texas while evaluating large scale green hydrogen/ammonia exports to Asian and global customers.

HOUSTON, Oct. 12, 2023 /PRNewswire/ — INPEX CORPORATION (INPEX), Japan’s largest oil and gas exploration and production company, and Green Hydrogen International (GHI), the world leader in green hydrogen developments, have signed a Joint Study Agreement to advance GHI’s flagship Hydrogen City production hub in South Texas with the aim of producing green hydrogen and green ammonia to meet growing Asian and global market demand.

GHI’s low-cost model of producing green hydrogen utilizing salt cavern storage and behind-the-meter renewable power aims to solve the cost and scale challenges of green hydrogen production. With INPEX’s expertise in developing large scale energy projects around the world and extensive experience marketing LNG to international customers, the companies’ partnership aims to develop one of the world’s largest production and export hubs with the most cost-competitive green hydrogen in the world.

“GHI is honored to be partnering with INPEX CORPORATION on our Hydrogen City project. Their unapparelled expertise in large energy project development combined with a world-class marketing organization will provide enormous advantages to the Hydrogen City project and our goal of producing the world’s lowest-cost green hydrogen by 2029,” says Brian Maxwell, CEO of GHI.

INPEX Representative Director, President & CEO Takayuki Ueda said, “As we work towards the fulfillment of INPEX Vision@2022, I am excited to announce this green hydrogen project in Texas, which exemplifies our unwavering commitment to environmental leadership and innovation. This project perfectly aligns with our Vision@2022, as we strive to reshape the energy landscape by producing green hydrogen and accelerating the transition to a sustainable, carbon-neutral world. INPEX’s dedication to a brighter, greener future remains steadfast, and this endeavor in Texas marks a pivotal step in our vision for a more sustainable tomorrow.”

About the Project
Phase 1 of the Hydrogen City project is planned to produce 280,000 tons per year of green hydrogen, which will be used to produce 1 million tons per year of green ammonia for export. Additional volumes of green hydrogen will be available for local customers. The project will be powered by 3.75GW of behind-the-meter renewable energy and utilize salt storage to balance out the daily and seasonal intermittency of renewable energy. Construction is planned to start in 2026 with commercial operation planned for 2029. The partners plan to expand the project with additional phases as customer demand grows.

About GHI
GREEN HYDROGEN INTERNATIONAL is the world’s leading green hydrogen development company with a global pipeline of large-scale projects located near low-cost renewable energy and storage-grade salt assets. The company’s flagship Hydrogen City project in South Texas is planned to produce 280,000 tons/year of the world’s lowest levelized cost of green hydrogen by 2029. GHI intends to play a leading role in the energy transition from a hydrocarbon world to a world powered by sustainable energy and green hydrogen. For more information, visit

About INPEX 
INPEX CORPORATION is Japan’s largest exploration and production (E&P) company and is currently involved in projects across multiple continents. By thoroughly making its oil and gas business cleaner while expanding its five net zero business areas, INPEX aims to provide a stable supply of diverse and clean energy sources including oil, natural gas, hydrogen and renewables as a pioneer in energy transformation. The company plans to commercialize three or more projects by around 2030 and aims to produce and supply 100 thousand tons or more of hydrogen/ammonia per year. For more information, visit

Media Contacts:

Brian Maxwell

Yuko Mori, INPEX Tokyo Office
Public Relations Group
Tel: +81-3-5572-0233

SOURCE Green Hydrogen International Corp.