Ugreen 20W USB-C PD Charger is an alternative to the Apple 20W USB-C Power Adapter. It retails for S$15.99 on Lazada and shipping to Singapore is S$1.49 if you have not collected the free shipping voucher from Lazada.
This is a Power Delivery 3 (PD 3) / QuickCharge (QC 4) charger, and hence it can deliver 9V/2.22A as required by Apple’s MagSafe Charger.
This charger’s footprint is slightly larger than the Apple 20W USB-C Power Adapter, and the UK-pin doesn’t fold. Hence, it is bulkier than Apple’s one.