Huawei Technologies is among the Chinese tech giants exhibiting at a big data expo in Guiyang that opened May 26. (Photo by Shusuke Tabeta)

SHUNSUKE TABETA, Nikkei staff writer |

GUIYANG, China — The China International Big Data Industry Expo opened Friday in the southwestern city of Guiyang, packed with Chinese technology companies vying for a piece of a domestic industry poised to nearly double in size by 2025.

Telecom equipment makers China Electronics Corp. (CEC) and Huawei were among the Chinese companies sending representatives to the conference.

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