Acme’s Oman green ammonia project set for $4.2bn expansion

Indian conglomerate Acme will commit $4.2bn to the second and third phases of its Oman green hydrogen and ammonia project, which is set to have its first phase brought into commissioning this year.

Upon completion, each new phase will produce 71,000 tonnes of green hydrogen and 400,000 tonnes of green ammonia per year, bringing the project’s annual green ammonia capacity to just under one million tonnes.

The investment announcement comes after state-owned Hydrom the additions to the Duqm Special Economic Zone (SEZAD) project into Oman’s national hydrogen portfolio in 2025.

While timelines for the two new phases have not yet been revealed, the first phase is already under construction.

Due to begin commissioning this year, the first phase will supply fertiliser firm Yara with 100,000 tonnes of ammonia per year.

Acme was awarded land at SEZAD in the Sultanate’s first green hydrogen production auction, granting it tax breaks and fee cuts aimed at speeding up a final investment decision (FID).

The SEZAD is playing a central role in Oman’s hydrogen strategy, hosting several green hydrogen and ammonia projects, including Meranti Green Steel’s planned 2.5 million-tonne-per-year hot briquetted iron (HBI) facility.

However, late 2025 saw a setback with the  flagship Hydrom projects initially planned to produce a combined 350,000 tonnes of green hydrogen per year.