Phillip Futures Sdn Bhd derivative product specialist David Ng said sentiment also remained upbeat because of the strong manufacturing data from China.

September 2013 gained RM23 to RM2,430 a tonne, October 2013 rose RM26 to RM2,430, November 2013 added RM24 to RM2,428 and December 2013 surged RM24 to RM2,428 a tonne. 

Volume dwindled to 33,536 lots from 39,420 last Friday and open interest fell to 192,594 contracts from 201,383 previously. 

On the physical market, September South increased RM10 to close at RM2,460 a tonne from RM2,450 a tonne on Friday. Bernama