The head of the UN agency for women's empowerment says she wants G20 leaders to do more to promote women in politics and the workforce.
Phumzile Mlambo-Ngcuka is the Executive Director of UN Women and a former deputy president of South Africa.
Mlambo-Ngcuka says getting more women engaged in political and economic life is just as important as the other topics at the summit.
She says, "These are the leaders of the most important economies in the world with the possibility to make a difference.
They must demand the participation of women in the labor market."
A recent OECD report found that the global income loss from gender-based discrimination amounts to $6 trillion annually.
Mlambo-Ngcuka says the private sector has a crucial role to play in tackling this problem.
She says, "Equal pay would help to reduce the inequality between men and women but also between communities."
Mlambo-Ngcuka is reaching out to one of Japan's most globally successful companies while she's here. She's set to launch an agreement on Friday with the parent firm of clothing retailer Uniqlo to promote gender equality in the workplace.