The loop was launched in May 2011 as part of a revamp to offer thrice weekly services. The TP-1 deployed 3,000-TEU class ships, with four ships expected to leave service by next week.
POS and TSL will now change to a two-loop transpacific pattern with the TP-2, calling at Xiamen, Hong Kong, Shenzhen-Yantian, Shanghai, Long Beach, Oakland, Busan and back to Xiamen using five ships in the 3,500 TEU range.