The owner told investors today it had signed up for two firm vessels with options for two more.
Price details and vessel specifications were not disclosed.
TradeWinds reported earlier this month the owner was to pay around $25m per copy for the 1,800-teu vessels.
The newbuildings will be CSBC’s first order this year. Its last deal was in October 2014, when Singapore’s Greeland Petroleum Operations (GPO) signed up for four 65,000-dwt semi-submersible heavylifters for delivery in 2017.
TS Lines was established by TS Chen — a Taiwanese national and former managing director of Wan Hai Lines — in March 2001 to trade within Asia and to India and East Africa.