After COSCO Sea Control, Chinalco announced in the evening that its net profit in the first quarter was about 30 times higher than the same period last year. A number of Chinese prefix concept stocks issued pre-increase announcements, which were closely watched by foreign investors. From a fundamental point of view, seven Chinese prefix companies have released their results for the first quarter of 2021, all of which have achieved substantial pre-growth. The net profits of China Coal Energy and AVIC have increased by 443% and 300% respectively. It is worth noting that in the past three days, northward funds bought a large number of Chinese concept stocks, increasing their holdings by a total of 1.708 billion yuan. specifically, from the perspective of individual stocks, Ping an of China increased its holdings by 509 million yuan, and China Stonehenghua and China Shenhua both increased their holdings by more than 400 million yuan. Chinalco increased its holdings by 38.143 million yuan, with a cumulative increase of nearly 4%. (Securities Times)