SIES is a multilingual commodity and business marketplace that connects users with listings for raw materials, electronic components, industrial goods, and a broad range of other products and opportunities. The platform is organized around categories including raw materials and consumables, equipment and components, industrial goods, construction materials and interiors, vehicles and spare parts, food products, healthcare, real estate, business and startups, digital products, art and jewelry, and tenders.

Businesses and sellers can create a listing, offer products for sale, and use the platform to search its catalog. SIES presents itself as a business aggregator, with tools intended to support commercial activity. Visitors can browse brands, access currency rates, and manage an account after signing in or registering. The site displays support for multiple languages and a range of currencies, including rubles, US dollars, euros, pounds, yuan, yen, and several cryptocurrencies. Contact information and a user agreement are also available, giving users access to basic platform guidance and service details.