Sri Lanka and Vietnam have signed agreements to share expertise in oil and gas explorations and for the purchase of oil from a Vietnamese state-run company.
A total of eight agreements were signed during a visit by Vietnamese President Truong Tan Sang to Sri Lanka, including a deal on machinery manufacturing, greater defence cooperation and bilateral cooperation in public finance management.
The deal comes two days after the visit of the Vietnamese President to India, where he signed agreements with Indian Prime Minister Manmohan Singh.
The agreements included a security pact between India and Vietnam and an accord to promote oil exploration in the South China Sea, ignoring objections by China, who claim vast parts of the sea as Chinese territory.