(Yicai Global) Jan. 9 -- Chinese delivery firm STO Express Co. has made a CNY30 million (USD4.6 million) investment in Myntai Technology Co., a provider of visual positioning systems for robots, as part of the courier's long-term efforts reduce costs through the development of smart logistics.

Based in China's eastern Jiangsu province, Myntai will explore the use of its products in STO's delivery operations, the company said in a press briefing yesterday.

STO's outlay brings Myntai's total funding to almost CNY100 million following investment last year from Chengshi Ventures.

The start-up, which also operates units in Silicon Valley and Beijing, offers self-developed visual technology solutions for robots that provide accurate positioning in real-time. Myntai's products can be used in service, cleaning and security robots, as well as in autonomous vehicles.

China's delivery companies are increasingly exploring the development of intelligent logistics, a technology-driven approach to operations, as part of long-term efforts to control costs.