Trinity Airways (091810) has signed a Memorandum of Understanding with NH Investment & Securities covering the Carbon Offsetting and Reduction Scheme for International Aviation, or CORSIA, and emissions trading. The agreement is the first such deal between a Korean airline and a financial firm. The companies will exchange information, develop a joint response system for CORSIA and South Korea’s domestic greenhouse-gas market and related policies, pursue emissions-credit projects and support carbon-market development. Trinity Airways has purchased 20,000 tons of CORSIA-eligible carbon credits and contracted to retire them, becoming the first Korean airline to do so. It plans to buy additional eligible credits by the end of this year and gradually secure more than 10% of the volume it must offset by January 2028.