TikTok is expanding its investment in e-commerce. Earlier this year, the video platform began piloting TikTok Shopping in the U.S., U.K. and Canada, in partnership with Shopify. The deal allowed Shopify merchants with a TikTok For Business account to add a Shopping tab to their TikTok profiles and sync their product catalogs to the app to create mini-storefronts. Now, TikTok is announcing a slate of new brand partners for TikTok Shopping, including Square, Ecwid and PrestaShop, with Wix, SHOPLINE, OpenCart and BASE coming soon. It also introduced a fuller slate of solutions for TikTok commerce, including ad products and later this year, a TikTok Shopping API.