Japan Exchange Group Inc. will consider merging three smaller equity markets to simplify its exchange structure, a bourse official said.

JPX, created last year from the merger of the Tokyo Stock Exchange and Osaka Securities Exchange, will weigh combining its Mothers, TSE second section and Jasdaq markets, Yasuyuki Konuma, executive officer for the new listings department, said in an interview Tuesday.

Serious discussions have yet to begin and there is no schedule for the merger, he said.