ArcLight Clean Transition Corp. II is a special purpose acquisition company (SPAC) founded in 2021 and headquartered in Boston, Massachusetts, focused on facilitating mergers and acquisitions within the sustainable energy and natural resources sector. The company targets opportunities created by the transition to clean energy by merging with businesses involved in renewable natural gas (RNG) and other decarbonization solutions. Its core business involves raising capital through public markets for the purpose of acquiring companies in the energy transition space. A major recent development is its business combination with OPAL Fuels, a vertically integrated renewable natural gas producer and distributor serving the heavy-duty transportation market in the U.S. and Canada. This $1.7 billion transaction transforms OPAL Fuels into a publicly listed entity, which operates 24 biogas projects including RNG and renewable power facilities, with additional RNG projects under construction and a strong commercial expansion in biomethane-based renewable natural gas facilities. The deal was supported by a $125 million private investment in public equity (PIPE), anchored by NextEra Energy. ArcLight Clean Transition Corp. II operates within the energy infrastructure and clean transition industry segments, leveraging partnerships and strategic capital to scale low-carbon fuel solutions and contribute to the decarbonization of transportation and energy production. It is led by President and CEO Jake F. Erhard and Chairman Daniel Revers. The company initially went public on NASDAQ under the ticker ACTD, with operational and strategic focus on decarbonization, RNG production, and renewable energy infrastructure investments.