Proto Corporation provides consolidated earnings guidance for the six months ending September 30, 2021 and Full Year Ending March 31, 2022. For the six months ending September 30, 2021, the company expects net sales of ¥27,528 million, operating income of ¥2,683 million, ordinary income of ¥2,675 million and net income attributable to owners of parent of ¥3,287 million or ¥81.86 per share. For the full year ending March 31, 2022, the company expects net sales of ¥60,000 million, operating income of ¥6,100 million, ordinary income of ¥6,080 million, net income attributable to owners of parent of ¥5,615 million and net income per share of ¥139.82.