2020 duo delivery of the Guo Hai Min Sheng and Guo Hai Min Xing.

Delivery of first two PSVs for COSL

8 May 2020 saw the delivery of the first two platform supply vessels of the ULSTEIN PX121 design built at SWS, China, the 'Guo Hai Min Xing' and the 'Guo Hai Min Sheng'. They are operating for COSL – China Oilfield Services Limited, for whom they have a long-term charter.
Published
11 May 2020
Share

Two more vessels of the same design at SWS (Shanghai Waigaoqiao Shipbuilding Co., Ltd.), have completed their sea trial and will also be delivered to COSL shortly, according to schedule. Owner of all four vessels is Sinoocean.

The ULSTEIN PX121 is a flexible platform supply vessel design featuring the X-BOW hull line design for smoother motions in head seas. In total, 30 vessels of this design have so far been contracted. A platform supply vessel of this design has a competitive combination of fuel-efficiency and cargo capacities/deadweight. This translates to a performance level that is usually expected from larger PSVs, but at a medium-sized PSV cost - delivering excellent value-for-money for the owner and operator.

Guo Hai Min Xing, an ULSTEIN PX121 design owned by Sinoocean.

Latest news

ULSTEIN Navy2025 Dec25 SB Duo
Feature

Ulstein designs for the standardised naval auxiliary vessels

With over a century of shipbuilding heritage, Ulstein is a vital part of the Norwegian maritime cluster, synonymous with innovation in ship design and the engineering that follows. From offshore vessels navigating the harshest seas to expedition cruise vessels exploring the polar regions, the company has consistently proven its ability to deliver advanced, reliable platforms. 

This experience forms the backbone as Ulstein now develops concepts for standardised naval vessels for the Royal Norwegian Navy. The ships will meet the Navy’s need for advanced, reliable and efficient vessel platforms.

Naval
N Xyyy Navy v3 Nov25 Sea Mil Ops Interceptor SB Aft Low
Press Release

Shipyard collaboration on standard auxiliary ships for the Norwegian Navy

The Royal Norwegian Navy has an ambition to acquire series‑produced, standardised naval vessels. This requires ships that are versatile, robust and future‑oriented, yet cost‑effective to build. Few shipyards in Norway can meet this challenge. Together, Larsnes Mek. Verksted (Larsnes) and Ulstein Group (Ulstein) have extensive experience and strong references in the design, construction, and maintenance of vessels. They collaborate to offer a solution that ensures the efficient production of naval ships. 

Naval