Affiliate & FTC disclosure

Mahjong Set Finder is an independent comparison site. This page explains how product links and prices work.

Affiliate relationships

We may earn a commission if you buy through some product links, at no extra cost to you. That only happens when an affiliate program is approved and a tag is configured in public/data/affiliate.json.

Amazon product links may include our Associates tracking ID (tag=mahjongsetfin-20). We may earn a commission if you buy through those links, at no extra cost to you.

What we do not do

• We never invent prices, discounts, or “sale” badges.
• We never reproduce National Mah Jongg League (NMJL) card content, hand lists, or card images.
• We are not affiliated with NMJL, Costco, Walmart, Sam’s Club, Hobby Lobby, Amazon, or any set manufacturer.

Prices

Catalog prices come from public retailer pages on the scrape date shown on each product (currently 2026-10-30 for the seed catalog). We store history under /data/prices/. The Deals page only flags a drop after we have more than one verified capture for that item.

Contact

Questions about this disclosure: use the site owner’s usual channel (Jeff). Domain: https://mahjongsetfinder.com/.