China's memory‑chip leader ChangXin said on Oct. 30 at its Q3 results briefing that its sixth‑generation DRAM process platform, based on a 4F^2 vertical‑channel architecture, has completed engineering wafer validation. Per industry practice, that indicates core performance metrics have met design targets on real wafers; following customer qualification the platform can proceed to volume production.

Russian Defense Ministry said Russian air defense systems shot down 433 Ukrainian drones overnight.

Japan Foreign Minister Toshimitsu Motegi said the second G20 foreign ministers' session on energy security has concluded. He told delegates energy security requires multinational cooperation and used the meeting to reintroduce Japan's 'Power Asia' initiative to strengthen regional electricity and energy cooperation. Motegi urged G20 members to step up coordination to ensure stable energy supplies and said Japan will play an active role.