The offshore vessel owner has exercised options for a pairof high specification platform supply vessels (PSV) in China.
Pac Radiance logged an initial order for two of the UlsteinPX121 designs at the same yard in September.
All four vessels will be delivered by an unnamed shipyard in2015.
James Pang, managing director, said: “Fresh from oursuccessful initial public offering (IPO) in November, we are keen to press homethe advantage and accelerate plans to build up our presence in key markets.