AVIC Heavy Machinery (SHA:600765) plans to sell up to 16.7 million shares of Shangda Aviation Materials via negotiated transfer.
The shares have a book value of 86.8 million yuan as of the end of 2025, according to a Tuesday filing with the Shanghai bourse.
AVIC Heavy Machinery currently holds 50 million shares of Shangda Aviation Materials, or a 13.45% stake.
Shares of the manufacturer of forging, casting, hydraulic and environmental control products wer down 2% in recent trade.