UK private equity firm Pinnacle International is advancing a due diligence process related to a planned strategic partnership with Swiss energy storage solutions provider Leclanche SA (<a href="https://www.six-group.com/en/market-data/shares/share-explorer/share-details.CH0110303119CHF4.html#/" target="_blank">SWX:LECN</a>) that envisages the establishment of a joint venture and the construction of two 2 GWh production facilities.