China Yuchai International's stock experienced a pre-market plunge of 5.51% on Tuesday.

The sharp decline follows the company's latest earnings report, which revealed that quarterly sales of $3.509 billion missed the analyst consensus estimate of $4.010 billion by 12.50%. While the company reported a 78.95% year-over-year increase in earnings per share to $2.04, the significant revenue shortfall appears to have triggered investor concern and selling pressure before the market open.