Spot rubber regained strength reacting closely to the gains in domestic futures and global trendsetters on Thursday. RSS 4 improved to ₹118 (₹117) a kg, according to traders. The grade closed firm at ₹117.50 (₹117) and ₹114.50 (₹114) respectively, according to the Rubber Board and dealers. November futures flared up to ₹124.50 (₹120.90), December to ₹127.20 (₹124.03), January to ₹129.50 (₹126.07) and February to ₹132.31 (₹128.46) on the National Multi Commodity Exchange. RSS 3 (spot) improved to ₹120.40 (₹118.59) at Bangkok. November futures firmed up to ¥194.7 (₹121.62) on the Tokyo Commodity Exchange. Spot rubber rates (₹/kg): RSS-4: 118 (117); RSS-5: 113 (112); Ungraded: 104 (103); ISNR 20: 103.50 (103) and Latex (60% drc): 73 (73).