Spot rubber finished flat probably following a weak closing in global markets on Wednesday. Certain tyre companies were buyers up to ₹130 a kg but RSS 4 continued to rule steady at ₹131, according to traders. The grade closed unchanged at ₹130 and 127 respectively as reported by the Rubber Board and dealers. December futures dropped ₹131.25 (₹134.19), January to ₹134.20 (₹137.03) on the National Multi Commodity Exchange. RSS 3 (spot) weakened to ₹137.86 (₹141.10) at Bangkok. December futures declined to ¥221 (₹133.92) on the Tokyo Commodity Exchange. Spot rubber (₹/kg): RSS-4: 131 (131); RSS-5: 127 (127); Ungraded: 117 (117); ISNR 20: 119 (119) and Latex (60% drc): 80 (80).