Mauna Kea Technologies announced sales results for the second quarter and first half year ended June 30, 2021. Total sales for the second quarter of 2021 increased €1.1 million, or 177% year-over-year, to €1.7 million. Total sales for the first half of 2021 increased €1.2 million, or 58% year-over-year, to €3.3 million.