Abu Dhabi Gas Liquefaction Company Limited (Adgas) has formally signed a $1 billion agreement with Hyundai Heavy Industries for the construction of an integrated gas development plant on Das Island, state news agency WAM said.

The South Korean firm had announced in July that it had won the $1 billion gas equipment project order in the United Arab Emirates, the Wam said on Monday.

Adgas, a subsidiary of the state-owned Abu Dhabi National Oil Company (Adnoc) plans to complete the project over a 49 month period and will involve multiple offshore and onshore sites, said Fahim Kazim, general manager of Adgas.

"It is a part of the integrated gas development (IGD) project which is... to process and supply the gas to meet the growing needs and development plans of Abu Dhabi," he added.

Limited land area on Das Island had been a challenge facing the project, said Kazim.

"Due to the limited area on Das Island, we had to reclaim an additional 108,000 sq m of land for the project facilities and to build a 100 meter long jetty for off loading of heavy 1500 Tons modules."

Around 85 per cent of the LNG produced at Das Island is exported to Japan's Tokyo Electric Power Company.

Adnoc is the government-run oil company for the emirate of Abu Dhabi, the leader of the seven-member federation of the United Arab Emirates. Abu Dhabi holds most of the oil and gas reserves in the UAE, the world's third-largest oil exporter.-Reuters