Update July 28: According to DX-World the team is still on Kaishan Island due to the typhoon In-Fa, with limited power and internet access.

BA4TB, BD4TS, BD4XI, BH4TVU and others will be QRV during the IOTA contest (M2 HP category) as B4T from Kaishan Island, AS-135.
Before the contest they will be active as BI4SSB on 40-6m in CW,SSB and FT8.
Depending on the ferry schedules the team may instead activate Qinshan island.

QSL via BA4TB.