BYD HK SDR 10to1 shares fell sharply by 3.49% during Thursday's intraday trading session, as investor concerns mounted over the company's supply chain relationships and operational adjustments.

The decline follows reports that Mingnayang Intelligent Technology, a primary supplier of drive motor stator production lines for BYD, has seen a dramatic reduction in sales to the automaker. According to recent disclosures, Mingnayang's sales revenue from BYD clients dropped from 74.15% of its total in 2023 to just 2.39% in the first seven months of 2025.

Mingnayang attributed this significant decrease to BYD adjusting its operational plans based on business development needs and market expectations. The supplier also noted that most new orders from BYD are still in the execution phase and have not yet met revenue recognition conditions. This substantial reduction in orders from a key supplier has raised questions among investors about BYD's production planning and future growth trajectory.