Hi Qi
Can assist to check if this item have free shipping to sgp?
http://www.amazon.com/Learning-Resources-Calculator-Register-Packaging/dp/B00000DMD2?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=ATVPDKIKX0DER
If yes, confirm i want it. See if possible to add on to your current...