All Nippon Airways Co, Japan's second-largest carrier, said it may add Shanghai Airlines Co to its partnership with Asiana Airlines Inc to expand its network, President Mineo Yamamoto said recently.

The cooperation with Shanghai Airlines would start with codeshares. An equity tie-up is not planned at present, he added.

Adding a Chinese carrier to the partnership would allow the two airlines to boost their networks in the world's second-largest aviation market.