Mayorista Santiago, operated under the UTC Chile name, is an online wholesale retailer based in San Bernardo, Chile. It serves businesses and other customers seeking party supplies, stationery, craft materials, and pet products. The store’s party and celebration range includes balloons, tableware, candles, decorations, costumes, themed gifts, and baking supplies. Its stationery and school and office categories cover items such as pencils, markers, drawing materials, adhesive products, books, notebooks, and craft accessories. Pet shop products include toys, accessories, collars, leashes, harnesses, and clothing for pets.

The online shop features new arrivals, highlighted products, offers, and a shopping cart for placing orders. A minimum initial purchase of $100,000 applies. Customers who already have an account or run a business can contact the store to request account access without restrictions. The company also asks visitors to register in advance and obtain a QR access code from customer service before arriving at its warehouse. Customers can contact the sales team by email or WhatsApp for assistance.