It is the largest aircraft operating leasing company headquartered in Asia, as measured by the value of owned aircraft, and is listed on the Hong Kong Stock Exchange (SEHK: 2588) with its headquarters in Singapore and offices in Dublin, London, New York and Tianjin.

Ltd. (SALE) by Singapore Airlines and Boullioun Aviation Services, Inc., a U.S.-based aircraft operating leasing company.

[2] In July 2004, SALE underwent a change in its shareholder structure, following the transfer of the 35.5% stake held by Seattle-based Boullioun Aviation Services to the US lessor's parent company WestLB AG of Germany.

[4] In December, the company was acquired by Bank of China for US$965 million[5][6][7] and was named BOC Aviation on 2 July 2007.

On 1 June 2016, the company was listed on the Main Board of the Stock Exchange of Hong Kong.