German electrolyser maker Thyssenkrupp Nucera AG & Co KgaA (<a href="https://www.boerse-frankfurt.de/equity/thyssenkrupp-nucera-o-n" target="_blank">ETR:NCH2</a>) booked a net loss of EUR 7.2 million (USD 7.8m) in its second fiscal quarter as the improved sales could not offset rising costs and other effects.