Switzerland's main imports are natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin (31 percent of total imports); pharmaceutical products (11 percent); nuclear reactors, boilers, machinery and mechanical appliances; parts thereof (7 percent); vehicles (6 percent); electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles (5 percent); organic chemicals (5 percent); mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes (3 percent); and optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof (3 percent). Germany was the biggest source of imports (21 percent of total imports), followed by Italy (8 percent), France and the US (7 percent each), the UK and China (6 percent each), the UAE (5 percent), Austria and Ireland (3 percent each), Spain, Thailand, the Netherlands, Belgium and Japan (2 percent each).