Yes, you can earn or redeem points for purchases made on other countries’ websites too. You will earn points based on the prevailing points-spend structure.
Note: SG$1 = RM3
E.g. I am a Singapore-registered customer. I happen to visit Hong Kong and make a purchase of HKD50. Based on the points-spend structure of 1 point for every HKD5 spent, I will earn a total of 10 points.