Switzerland has banned the purchase, import and transit of Sudanese gold and restricted mining supplies such as mercury and cyanide, aligning its sanctions with European Union measures adopted on 13 July to cut funding to Sudan’s three-year conflict between the SAF and RSF. The Swiss rules also block related technical, brokering and financial services, and will be folded into its existing Ordinance on measures against Sudan, which already enforces a UN arms embargo and financial and travel bans on 36 listed individuals and entities. For refiners, traders and chemical suppliers, this tightens due-diligence and effectively closes a key European route for Sudan-linked gold flows.

Transport for London has released an updated Corporate Environment Plan detailing more than 70 actions to cut operational and embodied carbon and improve network resilience to extreme weather across the Underground, bus and road systems. Measures include accelerating fleet electrification, retrofitting stations and depots for energy efficiency, and upgrading drainage and track assets to cope with more intense rainfall and heat events. Civil and geotechnical engineers can expect tighter carbon requirements in design, materials selection and asset renewal, alongside higher design thresholds for flooding, overheating and slope stability.

Better traceability of critical minerals such as lithium and nickel is needed to manage operational and governance risks in complex supply chains, with the OECD report flagging fragmented company-level systems, low adoption by miners, and opaque transnational ownership structures in Indonesian and Philippine nickel. Case studies of lithium from Argentina and Chile show heavy dependence on Chinese processing and major data gaps, limiting visibility on foreign upstream ownership despite existing tools like SIMBARA, LME responsible-sourcing rules and local audits. The OECD proposes a phased, risk-based approach: short-term use of current supplier mapping and bilateral mineral agreements, medium-term closure of data gaps via traders, exchanges and smelters, and long-term cross-border data sharing and aligned battery standards through platforms such as the G7 Critical Minerals Action Plan, FORGE and RESourceEU.