On Wednesday, Japanese news daily the Nikkei reported that Tesla and Panasonic are ending their partnership to produce solar cells following the Japanese electronics company ramping up efforts to divest unprofitable businesses.

The development comes in the wake of Tesla diversifying away from Panasonic as its sole battery supplier for electronic vehicles after it brought in more partners such as South Korea’s LG Chem and China’s CATL.

Panasonic however intends to continue working together on automotive batteries for Tesla’s electric vehicles, reported the Nikkei.