The deal brings the total number of vessels contracted by Celsius at the restructuring shipyard to 14.
The Jeppe Jensen-led company already has 10 chemical tankers due for delivery in 2016, 2017 and 2018.
A senior executive from the company declined to comment on whether this was a brand new order or if Celsius has declared options.
He did not disclose the price of the deal either.
Shenzhen-listed