Tianfeng Securities released a research report on April 21 stating that it gave Tunnel Shares (600820.SH) a purchase rating, and the target price was 9.27 yuan. The main reasons for the rating include: 1) steady growth in revenue and profit, with prominent high dividend value attributes; 2) steady growth in core regional business, with short-term pressure on gross margin; 3) sufficient on-hand orders, and rapid growth in energy & operating orders; 4) investment income contributed more to profit growth, and good cash flow performance. (Mainichi Keizai Shimbun)