US tech company coming to the JSE in 2025

An advanced materials company currently listed on the NASDAQ is set to list on the Johannesburg Stock Exchnage (JSE) later this year.

On Thursday, 24 April 2025, the JSE announced the proposed secondary listing of ASP Isotopes on the exchange’s main board. Its current market capitalisation is around $400 million or R7.5 billion.

ASP Isotopes (ASPI) is a development-stage advanced materials company dedicated to developing technology and processes for the production of isotopes for use in multiple industries.

Specifically, ASPI employs proprietary technology, the Aerodynamic Separation Process. 

The company’s initial focus is on producing and commercialising highly enriched isotopes for the healthcare and technology industries. 

It also plans to enrich isotopes for the nuclear energy sector using Quantum Enrichment technology that the company is developing. 

Once listed on the JSE, the company’s common stock will continue to be listed and traded on the Nasdaq Capital Market.

ASPI’s history and technology are firmly rooted in South Africa and developed over four years by the company’s highly skilled South African team members. 

The company has three plants in Pretoria, refining the commercial production of Carbon-14, Silicon-28, and Ytterbium-176 to be used across the pharmaceutical, medical, quantum computing, and semiconductor industries.

ASPI believes that admission to trading its shares on the JSE will benefit the company and its stakeholders by enhancing liquidity, diversifying its shareholder base, and positioning ASPI for growth by providing access to another deep capital market.

The company expects strong interest and support for a JSE listing from South African institutional investors.

Through this listing, investors can access ASPI’s specialised and disruptive technologies, strong management team, size of markets and global demand for ASPI’s products.

The listing of ASPI on the JSE is expected to be by way of introduction and to become effective later this year, subject to the necessary regulatory approvals in South Africa.

“While our investor base has been created in the USA and Europe, the beating heart of our company is clearly currently in South Africa, with 97% of our employees and all our operating assets being located in South Africa,” ASPI chairman and CEO Paul Mann said. 

“We have to thank our South African staff, service providers and regulators for helping us achieve all we have done over the last four years, and, therefore, we owe it to South Africa to make our securities available to the local community.”

Valeo Capital Proprietary Limited has been appointed the sole South African Corporate Advisor and JSE Sponsor for the listing.