Singapore’s Cosco Corp has requested a trading suspension of its shares in the wake of “significant uncertainty” ahead of the company’s restructuring.

The shipbuilder, part of Cosco’s empire, will be affected by the establishment of Cosco Shipping Heavy Industry, the new shipbuilding entity unveiled last week.

Cosco Shipping Heavy Industry will combine as many as 13 shipyards and 20 more units into a single company.

Cosco