Casual wear behemoth Fast Retailing Co. is offering employees with same-sex partners the same benefits that straight couples receive--including marriage leave.

Among the 60,000 regular employees of Fast Retailing and its affiliates in Japan, those in same-sex relationships will be eligible to use the system as early as December.

Couples with the status will be allowed to rent company-managed apartments for families, receive congratulatory and condolence payments, and take six-day marriage leave.

"As a global company, we want to provide an environment where all employees can work without anxiety over the long-term by recognizing their lifestyle choices," a company representative said.

Fast Retailing has already met requests by employees for such benefits, prompting it to craft a new company policy.

Employees seeking to be recognized as having a same-sex partner are required to fill out and submit a company registration form.

IBM Japan Ltd. and Rakuten Inc. are among other companies that have introduced a similar system.