Spot rubber closed unchanged as sentiments remained neutral amidst extremely dull volumes and RSS 4 finished flat at ₹112 a kg, according to traders and the Rubber Board. The grade was quoted steady at ₹109.00 by dealers. September futures concluded at ₹114 (₹113.68), October at ₹113.00 (₹113.58), November at ₹113.00 (₹113.47) on the National Multi Commodity Exchange. RSS 3 (spot) inched up to ₹90.78 (₹90.72) at Bangkok. September futures closed at ¥162.3 (₹88.95) on the Tokyo Commodity Exchange. Spot rubber rates (₹/kg): RSS-4: 112 (112); RSS-5: 108 (108); Ungraded: 97 (97); ISNR 20: 98.50 (98.50) and Latex (60% drc): 81.50 (81.50).