Sidley Advises on the IPO of PT Amman Mineral Internasional Tbk., Indonesia’s Largest IPO in 2023 to Date

Sidley acted as international counsel to CLSA, DBS Bank, ING, and Jefferies, as international selling agents, and BNI Sekuritas, CLSA Sekuritas, DBS Vickers Sekuritas, and Mandiri Sekuritas, as joint lead managing underwriters, in connection with the Rp10.73 trillion (approximately US$710 million) initial public offering (IPO) of equity shares of PT Amman Mineral Internasional Tbk. (AMI). At the time of listing, this marked Indonesia’s biggest IPO in 2023 and the largest Asian IPO outside of China in 2023.

AMI is an Indonesian holding company that conducts exploration, development, mining, and processing operations in Indonesia through its operating subsidiaries and associates. AMI’s subsidiary, PT Amman Mineral Nusa Tenggara, operates the Batu Hijau mine, the second-largest copper-gold mine in Indonesia, behind the Grasberg mine operated by PT Freeport Indonesia. The Batu Hijau mine produces high-grade clean copper concentrate, which also contains gold and silver —highly desirable feedstock for smelters around the globe.

The deal team was led by Matthew Sheridan and Alexius Chong and included Klara Thamrin and Daniel Ang, with assistance on tax matters by Nicholas Brown, Christian Barraza, and Patrick Gray.