Spot rubber continued to close unchanged on Friday. RSS 4 was steady at ₹105 a kg by traders and the Rubber Board. The grade finished flat at ₹102, according to dealers. The trend was partially mixed as RSS 5 and latex lost further amidst dull volumes. December futures firmed up to ₹105.45 (104.48), January to ₹105.49 (104.84) and February to ₹106.20 (105.16) on the National Multi Commodity Exchange. RSS 3 (spot) improved to ₹86.24 (85.34) a kg at Bangkok. December futures firmed up to ¥162.4 (₹88.27) on the Tokyo Commodity Exchange. Spot rubber rates (₹/kg): RSS-4: 105 (105); RSS-5: 103 (103.50); Ungraded: 93 (93); ISNR 20: 86 (86) and Latex (60% drc): 78 (79).