Both sites shipped directly to Singapore. Satechi will ship to Singapore via USPS Commercial ePacket for US$12 (S$16) while Amazon will ship via Aramex for US$4.55 (S$6).
The Satechi Aluminum USB-C Multi-Port Adapter is retailing for US$89.99 (S$125).
I bought it together with the Satechi Aluminum USB-C Micro/SD Card Reader.
I was looking for a USB-C micro/SD card reader and chanced upon SanDisk Extreme Pro SD UHS-II Card USB-C Reader on the Apple Store and it retails for S$75.
It is very expensive and can only read SD card.