India-based ACME Group has committed approximately US$4.2 billion to develop the second and third phases of its green hydrogen and green ammonia project in the Special Economic Zone at Duqm (SEZAD), Oman — an expansion that, on completion, would make the complex one of the largest green ammonia facilities in the Middle East at roughly 900,000 tonnes a year.
The commitment follows the signing of Project Development and Usufruct Agreements between ACME, Hydrogen Oman (Hydrom) and the Public Authority for Special Economic Zones and Free Zones (OPAZ), formally integrating the project into Oman's national hydrogen framework. The two new phases will occupy roughly 80 square kilometers in Duqm, each designed to produce about 71,000 tonnes of green hydrogen and around 400,000 tonnes of green ammonia annually, with commercial operations targeted for 2030 and 2033 respectively.
Phase 1 — already under construction and designed for 100,000 tonnes of green ammonia a year — is scheduled for commissioning by the end of 2026 and is reported to be backed by a long-term offtake agreement with Norway's Yara International. If that schedule holds, Duqm would deliver one of the Gulf's first operating green ammonia exports, following Jordan's Aqaba complex which signed its $1 billion agreement earlier this year.
The scale matters beyond one project. Hydrom says its awarded green hydrogen projects across the Al Wusta and Dhofar governorates now represent more than US$50 billion in planned investment, supported by nearly 35 GW of renewable energy capacity and targeting around 1.5 million tonnes of green hydrogen a year by 2030. Oman's pitch is structural: world-class wind and solar co-located with deep-water export terminals at Duqm, a single-counterparty land-and-permit framework through Hydrom, and free-zone fiscal terms through OPAZ.
For the supply chain, Duqm is a bellwether. The project stack — electrolyzers, ammonia synthesis loops, and the solar and wind generation behind them — will be procured across three phases on one site, giving equipment vendors a repeatable Gulf customer rather than a one-off order.
Investment size, phase capacities and Oman pipeline figures cross-checked across The Energy Info, Energetica India, Chemical Industry Digest and AdvanceH2, September 2026. Total complex capacity: four sources state ~900,000 t/yr green ammonia including Phase 1; Renewable Watch states 800,000 t/yr — the two reconcile as phases 2–3 only (2 × 400,000) versus the full three-phase complex, and we cite ~900,000 t/yr for the full build-out. The Yara offtake agreement is single-source and marked as not independently verified.