Why Japanese and Chinese product?
Japanese printings have smaller set sizes, tighter pull structures, and original artwork that English sets often modify or split across multiple releases. Chinese Pokémon TCG product - particularly the Gem Pack series exclusive to Mainland China - is almost entirely undocumented in English. Sealed Vault exists partly to change that.
The set information pages are the foundation of this site. They cover release context, set structure, chase cards with specific card numbers, rarity breakdowns, and verified pull rate data where available. These pages are written as collector references first - useful whether you buy from us or not.