Industry (including construction, energy, and water) employs about one third of the labor force, and its contribution to the national economy has grown significantly in recent decades. It accounted for 29% of GDP in 2001. Industrial production in 2001 had maintained a 2.6% growth rate over 2000. Portuguese industry is mainly light; the development of heavy industry has been hampered by a shortage of electric power. Textiles—especially cottons and woolens—are the oldest and most important of Portugal's manufactures. Other principal industries are automotive assembly, electronics, glass and pottery, footwear, cement, cellulose and paper, rubber and chemicals, cork and cork products, and food industries (mainly canned fish). Small artisan industries, such as jewelry and homespun and hand-embroidered clothing, are of local importance.
Manufactured goods in the early 2000s included cement, wood pulp, crude steel for ingots, paper and paperboard, and radios and televisions. In 2003, footwear, automobiles, and textiles were the central industries. Portugal produced 239,719 automobiles in 2001, a 3% decrease from 2000. It produced 4,380 heavy trucks in 2000. The construction sector was attracting a high degree of investment in 2001.