SHANGHAI, Apr 11(SMM) - The domestic output of industrial silicon stood at 262,000 mt in March, up 9.1% month-on-month and 29.5% year-on-year, according to SMM estimate. The domestic output of industrial silicon totalled 749,700 mt in January to March, a year-on-year increase of 18.55%. The increase in maintenance capacity in Xinjiang and Fujian led to a slight decrease in the output. The main output increment of industrial silicon in March was contributed by the increasing number of operated furnaces in Sichuan and Nujiang, Yunnan, coupled with the resumption of production at silicon plants in Hunan, Guizhou. In April, some silicon plants in Inner Mongolia were in maintenance. More silicon plants resumed production after the rainfall returned to the normal level in Sichuan and there were new capacities in Nujiang. It is expected that the output in March will increased to 280,000 mt from February.