Shandong Weigao Group Medical Polymer Co fell the most in four years in Hong Kong trading after reporting third-quarter earnings that missed analysts' estimates.

Shandong Weigao fell 17 percent, its largest drop since Oct 24, 2008, to HK$8.19 ($1.06) at the close of trading. Shares of the company, which derives most of its income from products such as syringes and blood bags, earlier lost as much as 20 percent.

Bloomberg-Reuters