29 April–6 May 2026: luckin coffee Singapore Tropical Coco-Mango Refresher Promotion $4.50 App Deal at All Outlets by JR 29/Apr/2026 Enjoy luckin coffee Singapore’s Tropical Coco-Mango Refresher at just $4.50 with promo code via their app from 29 April to 6 May 2026. A refreshing tropical treat worth trying across all outlets islandwide. Read more
