the leaders of the market on the Iberian Peninsula. Its activities range from basic petrochemicals to derivatives. Production is concentrated at three petrochemical complexes located in Spain (Puertollano and Tarragona) and Portugal (Sines), where there is a high level of integration between basic and derivatives, as well as with refining activities in the case of the Spanish facilities. Repsol also has a number of subsidiary and affiliate companies, through which the company produces polyolefin compounds, chemical specialties and synthetic rubber at special plants. Trading The main function of Trading is to optimize the supply and deliver to market of the Group’s positions in international markets for crude oil and petroleum products (integrated supply chain). Its activity consists of: the supply of crude oil and products for Refining systems and other Group needs, the delivery to market of crude oil and associated products from its own production, the maritime transport of crude oil and derivative products associated with these activities, the management of crude oil and product hedges in the financial derivative markets. Wholesale and gas trading The Company’s activity in this area focuses on optimizing the margin from the marketing and sale of regasified LNG and natural gas. The optimization of the gas and LNG portfolio has been carried out through swap operations with third parties, along with logistic optimizations and trading in the gas system. Commercial and renewables Mobility It provides marketing and sales of oil and other products at service stations and directly (Direct Sales). At December 31, 2021, Repsol had 4,689 service stations in Spain, Portugal, Mexico and Peru. Lubricants, Aviation, Asphalts and Specialized Products Production and sale of lubricants, bases for lubricants, bitumen, jet fuel, extender oils, sulfur, paraffins and propellant gases. LPG Liquefied petroleum gas (LPG) is a viable alternative for making immediate progress toward decarbonization objectives. In Spain and Portugal, Repsol distributes bottled LPG, bulk LPG and AutoGas. In Peru, it supplies AutoGas. Retail Electricity and Gas Repsol provides electricity and gas in the retail sector (residential and businesses) with a base of more than 1.3 million customers throughout all of Spain. In 2021, Repsol secured the highest level of assurance —the A label— for the second straight year, for its environmentally friendly sourcing of electricity, according to the Comisión Nacional de los Mercados y la Competencia. Repsol is the only major retail marketer in Spain, in terms of customers supplied, that guarantees 100%