Mammoth Freighters LLC has selected STAECO as its new conversion MRO provider, establishing a third global Boeing 777 freighter conversion line at STAECO’s facility in Qingdao, China. The Fort Worth-based company chose STAECO following a Request for Proposal process, marking its entry into the Chinese market for 777 conversions. The new Qingdao line opens in September 2026, complementing existing operations at Aspire MRO in Fort Worth and STS Aviation Services UK Limited in Manchester. This expansion directly increases global conversion capacity to support operators facing growing air cargo demand. Specific aircraft volumes, investment figures, and annual capacity targets for the Qingdao site remain undisclosed in the announcement.