The new measures, which come into force on February 1, include a gradual ban on the purchase and import of Russian diamonds, as announced by the Swiss government on Wednesday.

The 12th package of European Union (EU) sanctions against Russia, which was adopted by Brussels on December 18 last year, also includes a ban on the purchase and import of pig iron or liquefied petroleum gas (LPG) from Russia, the government said. According to the EU Commission, the ban on LPG of affects imports totalling more than €1 billion (CHF930 million) per year.

The lists of banned export goods that could contribute to the military, industrial and technological strengthening of Russia have also been expanded. The export and sale of chemicals, lithium batteries, certain engines for drones and certain machines to Russia are now prohibited.

The list of companies subject to specific restrictions on goods with civilian and military applications has also been expanded.