Major opposition parties have submitted a bill that would permit same-sex marriage, a move that comes weeks after Taiwan became the first place in Asia to legalize gay marriage.

The bill, submitted Monday, is unlikely to go far in the Diet, where the ruling Liberal Democratic Party has barely budged to advance civil rights for LGBT people, even though business leaders have demanded change, saying current policies are hurting their ability to attract top global talent.

The bill by the Constitutional Democratic Party of Japan, Japanese Communist Party and others states that marriage would be established on the basis of marriage equality.