CYH International Ltd (浩發製品有限公司)
Time Out says
CYH has walls of different buttons ranging from metal, vintage, knots and horns at slightly lower prices than competitors in the area. Depending on the type of button, one gross (bag of 144) of buttons can go from $20 to $100. The staff here are extremely friendly and helpful, and if you’re lucky, they might even break a bun and share their lunch with you.