Turkey Asserts State Control Over US-Sanctioned Bank Amid IRGC Allegations, Echoing Broader Economic Warfare

On September 4, 2026, the US Treasury's OFAC designated Golden Global Yatirim Bankasi and two subsidiaries under Executive Order 13902, citing facilitation of tens of millions in transactions for Iran's IRGC-Quds Force, including correspondent banking access and conversion of Chinese-sourced oil revenues into cash and gold.[1][2] Official Treasury statements detail the bank's role in supporting IRGC networks, linking to previously sanctioned entities like Turkish businessman Sitki Ayan.[1] In response, Turkey's Banking Regulation and Supervision Agency (BDDK) transferred shareholder rights for 99.98% of the bank's shares to the state deposit insurer TMSF on September 16, excluding dividend rights, citing liquidity issues and compliance failures.[3][4] Reuters and Turkish outlets confirm the move places effective state management over the small Istanbul-based investment bank, founded in 2019 with roughly €498 million in assets.[3] The bank has rejected the US charges, asserting compliance with regulations.[2] US Ambassador Tom Barrack clarified the action targeted specific conduct, not Turkey as a whole.[4] This episode fits within the Trump administration's 'Operation Economic Outcast,' part of intensified secondary sanctions on Iran amid ongoing regional conflict, including reported naval measures disrupting fuel flows.[5] While centered on finance, such banking controls intersect with maritime security dynamics by constraining Iran's oil export revenues that often rely on shadow fleets and alternative shipping routes to evade sanctions, potentially amplifying pressures on global energy trade lanes and allied defense postures in the region. Connections to prior cases like Halkbank underscore recurring Turkey-Iran financial frictions under US pressure.[6]