Wison Engineering has secured a contract worth about $4.04 billion to build a major natural gas processing facility for ADNOC Gas at Habshan, marking the Chinese engineering group’s largest engineering, procurement and construction award to date.The core EPC package for Phase 2 of ADNOC Gas’s Rich Gas Development project is valued at $3.9 billion. Wison’s additional scope includes a 220-kilovolt switch station, taking the overall contract value to approximately $4.04 billion.
The project will add a large-scale natural gas processing train at Habshan in Abu Dhabi. Wison will deliver gas pipelines, separation and condensate stabilisation units, acid gas removal facilities and deep natural gas liquids recovery units, alongside other critical processing infrastructure and the electrical switch station.
The award gives Wison a central role in one of ADNOC Gas’s biggest capacity-expansion programmes and significantly increases the Chinese contractor’s exposure to the Middle East energy market. Wison Engineering Services is listed in Hong Kong and provides engineering and construction services for energy and petrochemical developments.
ADNOC Gas has taken final investment decisions on both the second and third phases of the Rich Gas Development programme, awarding EPC contracts with a combined value of $8.2 billion. Wison received the $3.9 billion Phase 2 package, while Tecnimont, part of Italy’s Maire group, secured the $4.3 billion Phase 3 contract.
Tecnimont’s package will add a natural gas liquids fractionation train at Ruwais. The plant is designed to raise recovery of higher-value liquids from rich natural gas, expanding volumes available for export and strengthening ADNOC Gas’s portfolio of products for international customers.
The two projects build on the $5 billion first phase of Rich Gas Development approved in June 2025. That phase covers processing and efficiency improvements at Habshan, Asab and Buhasa as well as facilities on Das Island. Total committed investment across the three phases has now reached $13.2 billion.
Habshan is already one of the world’s largest integrated gas-processing complexes. Its five plants have combined processing capacity of about 6.1 billion standard cubic feet of gas a day, making additional investment at the site strategically important as Abu Dhabi raises upstream production and seeks to capture greater value from associated gas.
The Rich Gas Development programme is intended to increase processing capacity and recover larger volumes of natural gas liquids, condensate and other higher-value products from available gas streams. Higher upstream production is expected to deliver additional associated gas volumes into ADNOC Gas’s network, supporting greater utilisation of its processing and export infrastructure.
The expansion forms part of a wider investment programme under which ADNOC Gas expects to deploy about $28 billion between 2026 and 2030. The company has raised its targeted earnings before interest, tax, depreciation and amortisation growth to 60% by 2030 compared with 2023 levels, reflecting expected contributions from Rich Gas Development and other large projects.
Those projects include Ruwais LNG, the Maximising Ethane Recovery and Monetisation programme and the Estidama gas pipeline expansion. Together with Rich Gas Development, the schemes are intended to increase domestic gas availability, expand export capacity and supply feedstock to growing downstream industries and petrochemical plants.
The investment push is continuing despite operational and geopolitical pressures during 2026. ADNOC Gas reported second-quarter net income of $665 million, down from $1.39 billion a year earlier, after disruptions to maritime traffic through the Strait of Hormuz affected product liftings. Domestic gas sales remained an important source of earnings during the period.
Habshan itself was affected by security-related incidents on April 3 and April 8. ADNOC Gas subsequently accelerated restoration work and said by August that gas supply from the complex had recovered to 85%, exceeding the target it had previously set for the end of 2026.
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