Yang Ming is reorganising its Asian network "under the impact of rising global trade tensions," it said.
A relocation and adjustment of cargo flow and supply chains is expected, the Taiwanese liner company added.
As a result, it is launching a new intra-Asia loop, China-Thailand Service (CTX).
The first sailing is scheduled for 12 July from Shanghai.
The run will use three 1,200-teu feederships, one of which is contributed by Yang Ming.
Ports are Shanghai, Ningbo, Xiamen, Laem Chabang, Bangkok and Hong Kong.
"Yang Ming continues to enhance its intra-Asia service network to provide customers with better and more comprehensive services," it said.