Obviously a hard one to track down, but maybe somebody can dig it out!
The 2025 Deep-Sea Archaeological Research And Protection And Utilization Project Of The Archaeological Research Center Of The State Administration Of Cultural Heritage – Public Tender Announcement Of The Procurement Of Deep-Sea Cultural Relics Improvement System (Second)
Deadline – Jun 20, 2025
https://www.globaltenders.com/tender-detail/the-2025-deep-sea-archaeological-research-an-110014968