The Aframax tanker Ping Shun, which was transporting 600,000 barrels of Iranian crude oil, has unexpectedly shifted its course from Vadinar, Gujarat, India, to Dongying, China. This change comes just days before its scheduled arrival in India, marking the first potential shipment of Iranian oil to India since 2019. According to Sumit Ritolia, Lead Research Analyst at Kpler, the rerouting appears to be linked to payment complications, with sellers tightening credit terms. Historically, India was a significant buyer of Iranian oil, importing 518,000 barrels per day in 2018, but imports ceased after the U.S. imposed sanctions in May 2019. The U.S. recently granted a 30-day waiver on sanctions for Iranian oil purchases, but the payment mechanisms remain unclear, as Iran is cut off from the SWIFT financial network. The situation underscores the increasing importance of financial terms in the trade of Iranian crude oil, particularly as Indian refiners explore opportunities to resume imports.