Block A1 and Block A3 are located off Myanmar's Rakhine Coast, near the maritime border with Bangladesh. Daewoo was awarded Block A1 in 2000 and Block A3 in 2004, the partners are aligned across both assets. Block A1 contains two fields, Shwe and Shwe Phyu, discovered in January 2004 and March 2005 respectively. Mya was subsequently discovered in March 2006 in Block A3. Total recoverable reserves from all these fields are estimated at more than six tcf of gas. A Gas Sales Agreement (GSA) was signed between the Daewoo International-led consortium and China National United Oil Corporation (CNUOC, a wholly owned subsidiary of CNPC) in December 2008. The project was declared commercial when the EPCIC contract was awarded to Hyundai Heavy Industries and Doris Engineering in October 2009. Shwe and the northern part of the Mya field have been developed first, while Shwe Phyu and the southern part of Mya will be developed 13 to 14 years after first production.