Warranty
Due to the closure of Tupperware in Singapore, there is no more warranty services in Singapore. Though not official information, I personally suggest heading to Tupperware in Malaysia for warranty matters.
There is no need to specifically mention that your product was purchased in Singapore because the products sold were generally the same. Saying that your stock is from Singapore may affect your warranty eligibility.
Tupperware Brands @ Bandar Baru Uda, Johor Bahru
7, Jalan Padi Emas 3/1, Bandar Baru Uda, 81200 Johor Bahru, Johor Darul Ta’zim