Pls understand that this DN can’t be proceeded due to following reasons:
1) SIM clearly mentioned that the price effective date that they agreed 
is ‘Ex-work date Jan 1st, 2014’ onward.
2) We, Sumitomo, can’t arrange retroactive price adjustment, as previously 
informed in the meeting last year.
Thus, next time pls clearly specific the effective date in your quotation, as per our 
instruction to all suppliers in the attached reference mail. And kindly drop copy of 
your email about quotation to us.