4XZ has appeared on 8.432.0MHz CW, noted at 1522z 529 report Saturday 28th May 2022 and again Sunday 29th Mat 2022 at 0620z 519 report.
It's sandwiched between Turkey (TAH) and China (XSQ) marine radio beacons on 8.431.0MHz CW and China (XSG) on 8.433.0MHz CW.