People pose for photos at the Africa Rail 2026 at the Sandton Convention Centre in Johannesburg, South Africa, July 7, 2026. The exhibition, serving as a platform for industry stakeholders to promote the collaborative development of Africa's railway sector, was held here from July 7 to 8. (Photo: Xinhua)

A man walks past the booth of Prasa during the Africa Rail 2026 at the Sandton Convention Centre in Johannesburg, South Africa, July 7, 2026. The exhibition, serving as a platform for industry stakeholders to promote the collaborative development of Africa's railway sector, was held here from July 7 to 8. (Photo: Xinhua)

People communicate during the Africa Rail 2026 at the Sandton Convention Centre in Johannesburg, South Africa, July 7, 2026. The exhibition, serving as a platform for industry stakeholders to promote the collaborative development of Africa's railway sector, was held here from July 7 to 8. (Photo: Xinhua)

People visit the Africa Rail 2026 at the Sandton Convention Centre in Johannesburg, South Africa, July 7, 2026. The exhibition, serving as a platform for industry stakeholders to promote the collaborative development of Africa's railway sector, was held here from July 7 to 8. (Photo: Xinhua)