Hyundai Construction Equipment Co Ltd

ERock, Inc. has entered into a multi-year agreement with HD Construction Equipment, a subsidiary of Hyundai, for the supply of high-efficiency natural gas engine long blocks for its RockBlock generator. The agreement spans 2027 through 2028 and is intended to support increased production and help ERock fulfill large-scale orders from data centers, utilities, and other critical infrastructure operators. The long blocks form the core of ERock's proprietary natural gas generators and are engineered for reliability in the hyperscale data center segment. Chief Executive Officer John Carrington said long block supply is the foundation of the company's production and that the deal secures supply through 2028 as assembly capacity ramps, with production commitments extending into early 2028. ERock reported a $1.7 billion contracted backlog as of June 30, 2026, more than 400 operational sites, and approximately 1.1 GW of installed base, following major data center contracts with Meta and Microsoft. An HD Construction Equipment representative called the order a meaningful achievement that validates its engine long block technology in the emerging data center power market.