<h1>Diplomatic visits spur treaty implementation talks while alleged oil resale raises sanctions-evasion and trade negotiation risks</h1> Foreign diplomatic engagements described include a foreign secretary's bilateral visit and a Chinese foreign minister's regional visits aimed at implementing prior leader-level understandings, with implications for treaty implementation and diplomatic obligations. A US official alleges refinement and resale of sanctioned-state oil, raising potential sanctions-evasion and enforcement issues for jurisdictions and importers. Reference to a commerce minister highlights ongoing free trade agreement negotiations affecting trade law and tariff regimes. Heavy monsoon-related casualties in Pakistan and flash floods in India raise state duty-of-care, disaster response, and international humanitarian coordination considerations, noted by a UN official.