Sinokor Merchant Marine has signed up for six 50,000-dwt product tanker newbuildings worth $222m in total at Jinhae-based K Shipbuilding — formerly STX Offshore & Shipbuilding.

Shipbuilding sources said the South Korean owner has ordered the sextet for delivery in 2023 against charter contracts from energy major ExxonMobil.

K Shipbuilding officials declined to comment on its newbuilding activities, citing contract confidentiality. Sinokor did not respond to requests for confirmation or comment.

A Singapore-based ExxonMobil spokesperson also declined to comment.