However, the other covering "the additional shipment of bar cutter RC32 (MYW32) 5 sets and ......" is not necessary. Please don't mention it.
You can amend 45A “Description of goods and or services”: from ..... .. (as per proforma invoice 2015PLTH002 date Dec.24, 2015) to ........ (as per amending proforma invoice 2015PLTH002 date JAN.21, 2016
As in Feb., 2016, the workers in China are on Chinese New Year's holidays, the production is not normal. In order to avoid any further amendment, please also make the amendment at the same time: the shipment date extended to March 31, 2016, the expiry date extended to Apr.11, 2016. Hope it is OK.
Actually we will do our best to make the shipment at early of March, 2016.