Denmark’s Uni-Tankers is renewing its fleet with two modern stainless steel vessels.The Per Ekmann-led outfit is adding the <em>Selandia Swan</em> to its owned fleet this spring. The ship is said to represent the company’s ongoing commitment to renewing its fleet with new, energy-efficient tonnage.Uni-Tankers is also bringing in the 2024-built 6,000 dwt <em>Tina M</em> on a long-term charter in April.Both units are sister vessels to the 2022-built <em>Fionia Swan</em>, which joined Uni-Tankers’s fleet last year, and which according to the company, boasts about 25% higher efficiency compared to conventional tankers of similar size.The new additions will take Uni-Tankers’ fuel-efficient sister vessel series to five. The Middelfart-based company currently lists 43 ships in its fleet of which 16 are owned.