The European Commission is to propose on Tuesday to EU nations new sweeping sanctions against Russia, which include a ban on imports of coal, rubber, chemicals and other products from Russia worth up to 9 billion euros a year, an EU source told Reuters.

The EU is also proposing to ban exports to Russia worth another 10 billion euros a year, including semiconductors, computers, technology for LNG gas and other electrical and transport equipment, the source said.

(Reporting by Francesco Guarascio ; Editing by Hugh Lawson)