SHIJIAN-21 (SJ-21) and SHIJIAN-25 (SJ-25) were observed conducting Rendezvous and Proximity Operations (RPO) in geosynchronous orbit during Jun-Jul 2025 with multiple close approaches. The two objects appeared visually merged in optical sensor data between 2-6 Jul. Given the prolonged RPO time, SJ-21 and SJ-25 may have docked.