Jakarta. Indonesian e-commerce marketplace MatahariMall.com joined hands with the National Alms Agency, or Baznas, to set up an online calculator for zakat, or obligatory alms, and a portal for Muslims to easily pay their dues. Hadi Wenas, chief executive of MatahariMall.com, and Alvin Aulia Akbar, the company's head of communications and partnerships, attended the launch ceremony in Central Jakarta on Wednesday (31/05), along with Arifin Purwakananta, director for national zakat collection, communications and information at Baznas.