In a Jan. 17 statement, Alcatel-Lucent Shanghai Bell said it was investigating Caixin's report on Jia's allegations and disappearance.
On Tuesday, the influential business magazine said Jia's body was discovered in a tributary of the Huangpu river in February, adding that police had ruled out murder.
"We can confirm that a body has been found in the case of the missing executive," the company said in a statement. "Investigations are continuing," it added, but declined to make any further comment. The remarks were echoed by an Alcatel-Lucent spokesman based in Paris.
Alcatel-Lucent's Chinese partner in the joint venture is China Huaxin Post & Telecommunication Economy Development Center. In October, China Huaxin closed its purchase of Alcatel-Lucent's enterprise division for €202 million ($225.65 million).
A spokesperson for China Huaxin declined to provide immediate comment.