68 out of 100 Fair
Korea's value giant, and a rare case of a retailer's own label earning a place on merit. Tamsa is the house bentonite of Coupang, the country's dominant online marketplace, and it is bought by the pallet across Korea, duelling with Ever Clean for the genuine top of the national sales charts. It arrives at No. 45 with sixty eight on a steady, honest card.
Dust, clumping and odour each score a solid four. For a litter sold at the keenest of value prices, that is a genuinely respectable showing: it pours commendably clean for clay, sets a firm clump, and controls smell reliably across the week. There is no headline number here, but nor is there an embarrassment, which is exactly why a vast Korean audience reaches for it without a second thought.
The softer figures are tracking at three, the grain wandering a little more than the tidiest clays, and sustainability at two, the strip mined floor every bentonite shares. They are the honest limits of a budget mineral litter.
What lifts Tamsa onto this list is not a number but a fact: it is what an enormous share of Korean cats actually use, a real mainstream seller rather than a blog favourite, and a ranking built on reality has to reckon with it. It will not satisfy the environmentally minded, and it gives a little on tracking, but pound for pound it is one of the better value clays in the world. For the Korean owner who wants a dependable box without paying a premium, it is simply the sensible default. Honest, affordable mineral litter, validated by the cash register.