OSLO (Reuters) -U.S. e-commerce group eBay and Norway's Adevinta have secured final regulatory approval for a tie-up of their global classified ads businesses, the Norwegian firm said on Friday.

Under a deal struck last year, Adevinta will acquire eBay's Classifieds Group in return for $2.5 billion in cash and 540 million shares, valuing the transaction at around $13 billion at current stock market prices.