Walk around Camden Market this weekend and you'll notice that many of the stalls now support WeChat Pay. The mobile payment platform — an extension of Tencent's messaging app WeChat — is big in China but almost unheard of in the UK (at least outside of the Chinese community). So why bother? Well, the north London market is popular with Chinese tourists. SafeCharge, a company that helps businesses process payments, took notice and has updated its point-of-sale (POS) software accordingly. Now, stall owners can accept WeChat Pay with a tablet and compatible till.