22. Despite its relatively small share of total real GDP (1%), agriculture and related activities is of key importance in the economy because of Brunei's food security and self-sufficiency objectives. As a net importer of agricultural products, food security is mainly promoted through zero applied MFN and preferential tariffs. The agri-food processing industry has increased its participation in agricultural production supported by growing domestic demand in halal food and the authorities' efforts to market the "Brunei Halal brand" at regional and international level. Brunei maintains a system of subsidy for rice and sugar to protect consumers from increases in commodity prices.