Danish chemical tanker operator Uni-Tankers has reached long-term agreements for eight 7,600 dwt stainless steel newbuildings to be constructed at China’s state-owned Haidong Shipyard in Taizhou. Deliveries are scheduled to begin in 2028, with the vessels intended to replace older tonnage in the company’s fleet.

The scale is significant for an operator whose current fleet list contains 41 vessels. The eight ships represent nearly one-fifth of that number, although the replacement programme means the fleet should not be assumed to grow by eight ships.

The agreement also reflects two established business patterns: Uni-Tankers has repeatedly renewed its fleet through a combination of owned and long-term chartered vessels, while Haidong has built a track record in specialised oil and chemical tankers for domestic and international customers.

Eight ships, with the asset owner still undisclosed

Each new vessel is specified at 7,600 dwt and a reported gross tonnage of 4,998. The design has 14 cargo tanks with a combined capacity of 8,310 cu m. The ships are expected to be classed by Bureau Veritas and registered under the Maltese flag.

Uni-Tankers says the new tonnage will progressively replace older vessels and improve the service it can offer in its core markets. Chief executive Per Ekmann has described the programme as a major milestone in the company’s fleet renewal.

The commercial structure deserves particular attention. Uni-Tankers has clarified that the eight vessels will enter its fleet on time charter upon delivery. It is therefore the prospective long-term charterer and operator of the ships, while the party financing and owning them has not been publicly identified. Neither the newbuilding price nor the charter rate, duration or vessel-by-vessel delivery schedule has been disclosed.

For Uni-Tankers, the arrangement secures a substantial block of modern capacity without requiring it to purchase all eight ships directly. It also creates a long-term charter commitment whose economics will depend on the ships’ performance and the cargo business they attract.

A fleet renewal strategy built around partnerships

Uni-Tankers was founded in 1995 and is part of the USTC Group, which sits within the Østergaard-Nielsen family’s Selfinvest structure. Of the 41 vessels currently listed in its fleet, 14 are owned and 27 are chartered in. Long-term chartering is already central to the way it assembles and renews its capacity.

The company’s announcements over recent years show how the model has developed. In April 2023, it agreed to purchase the previously chartered Marex Noa, subsequently renamed Jutlandia Swan. At the same time, it arranged long-term charters for two Japan-built sister vessels, Marex Nina and Marex Mia, and two existing J19 stainless steel tankers through a Norwegian partner.

Five months later, Uni-Tankers announced the purchase of Sedat Basak alongside long-term agreements for two stainless steel newbuildings of the same series and two 12,500 dwt newbuildings through a Japanese partner. In 2025, Selandia Swan joined the owned fleet while the stainless steel tanker Tina-M was added under a long-term agreement. Uni-Tankers later identified Marex Maritime as the owner of Marex Mia and said another vessel in that partnership was expected in 2027.

The company has also reported progress on the approximately 13,000 dwt stainless steel tankers Swan Virtue and Swan Glory under a long-term arrangement with Murakami. These announcements cover different stages of fleet planning and delivery; they should not be added together as though every update represented a separate new order.

The Haidong programme is a larger extension of this approach. There is, however, no public confirmation that Marex Maritime, Murakami or any other previously named partner is financing the eight ships in China.

Ageing owned tonnage provides part of the context for renewal. Uni-Tankers’ fleet includes the 2005-built Amak Swan, the 2008-built Anhout Swan and the 2010-built Boringia Swan. The company has not identified which existing vessels the Haidong newbuildings will eventually replace.

Haidong’s chemical tanker credentials

Founded in 1958, Haidong operates in Taizhou, Zhejiang province. The yard says it has more than 700 metres of waterfront, six large building slipways, facilities capable of handling ships of up to 80,000 dwt and cranes with a maximum lifting capacity of 400 tonnes. Its recent delivery and construction record is more directly relevant to the 7,600 dwt programme than its maximum yard capacity.

One established relationship is with Zhejiang Yunxiang Shipping. After delivering two 3,400 dwt stainless steel chemical tankers for the owner, Haidong signed a two-plus-two-plus-two agreement for 6,600 dwt stainless steel tankers in April 2024. By July 2026, the fourth vessel in that series had completed sea trials, according to the yard.

Haidong has also moved further up the size range. In January 2026, chemical tanker operator GGT signed a one-plus-one agreement for 13,800 dwt duplex stainless steel chemical tankers, with deliveries then planned to start in mid-2027. The yard subsequently reported that construction of two vessels for the owner’s Hong Kong entity had begun in April. Separately, a roughly 14,000 dwt oil and chemical tanker, Zhongtuo Feicui, built for Zhoushan Zhongtuo Shipping, was launched in July 2025.

Its export customer relationships extend much further back. Haidong’s cooperation with Akron Group began in 2002 with four 4,990-tonne tankers and continued across several vessel sizes. In February 2023, the parties held a supplementary signing ceremony for four 80,000 dwt tankers, described at the time as their eighth round of cooperation.

These projects demonstrate experience with repeat customers and a range of chemical and product tanker sizes. They do not establish a previous direct relationship between Haidong and Uni-Tankers. Nor has the yard disclosed whether the unidentified asset owner behind the latest eight vessels is an existing Haidong client.

Why the 4,998 GT figure stands out

The stated gross tonnage of 4,998 places the new design close to a significant threshold in European maritime emissions rules. Under the current EU Emissions Trading System, the principal scope for cargo ships begins at 5,000 GT. FuelEU Maritime applies to relevant commercial ships above 5,000 GT calling at EU ports.

If the final tonnage certificates retain the reported figure and the rules remain as they are when the ships enter service, the threshold could affect the cost of operating them on European trades. That is a commercial implication of the published specification, not a stated design objective: Uni-Tankers has not explained why 4,998 GT was selected. The final certified tonnage and the regulations in force from 2028 onward will matter.

The design will also be judged on how effectively it combines cargo segregation, port access, fuel consumption and operating reliability. The number of tanks alone does not establish the range of cargo combinations each ship will be able to carry in practice.

The test will come in service

Uni-Tankers reported revenue of $427.8m and net profit of $23.4m for its 2025/26 financial year. During the period it sold three ships and bought one, while increasing the number and total deadweight of its time-chartered vessels. It also reported record contract coverage and expanded its presence in Asia through a Singapore office.

Operational investment is advancing alongside fleet renewal. In July 2026, Uni-Tankers announced plans to deploy Sofar Ocean’s Wayfinder platform across the fleet to support route and speed decisions, weather awareness and coordination between ships and shore teams. The company has not said whether the eight Haidong vessels are backed by specific long-term cargo contracts.

The programme will ultimately be measured by delivery performance and results at sea. Uni-Tankers needs ships that can operate efficiently and reliably across its trades; Haidong must deliver a consistent eight-vessel series on schedule. As construction progresses, the identity of the asset owner and the terms of the charter arrangement will provide a clearer picture of how this substantial fleet renewal is being financed.