Due to Management Information System department of IRPC would like to develop an efficiency of internal company system, data adaptation is needed to conform to system developing. Therefore, LOT number has to be changed into 10 digits or 10 characters. The 10 digits LOT number will be used with the product manufactured from 1 February 2010 onwards. If you have any question, please contact technical supports. ***** Remark: You can download the letter by click on download sign at the bottom of the page.*****