TBEA's (SHA:600089) net profit attributable to shareholders in the first half fell 20% to 2.55 billion yuan from 3.18 billion yuan a year earlier, according to a weekend filing on the Shanghai bourse.
Earnings per share fell to 0.51 yuan from 0.63 yuan.
Operating revenue jumped 17% to 56.6 billion yuan from 48.4 billion yuan in the previous year.
Shares of the Chinese switchgear and transformers manufacturer slipped 5% Monday morning.