AstraZeneca on Thursday said it could face a fine of up to $4.5 million in China over suspected unpaid import taxes, raising investor hopes that the impact of several probes in the country could be minor and leading its shares to rise about 5%.

In addition to the UK investment controversy, AstraZeneca is also dealing with legal challenges in China. The company confirmed that its Chinese business is under investigation for alleged unpaid import taxes on certain cancer drugs, including Imfinzi (durvalumab) and Imjudo (tremelimumab).

AstraZeneca stock rose early Thursday after the drugmaker beat fourth-quarter earnings views and delivered upbeat guidance.

AstraZeneca could face a fine of up to $4.5 million in China over suspected unpaid taxes related to the import of two of its cancer drugs, the pharmaceuticals giant said on Thursday as it continues to gauge the impact of ongoing investigations in the key growth market.

AstraZeneca on Thursday warned that it could be fined millions of dollars in importation tax fines as Chinese authorities investigate the company’s former China head. | As AstraZeneca faces an ongoing investigation into alleged illegal importation of drugs in China,

AstraZeneca said the taxes related to two cancer drugs, Imfinzi and Imjudo, and that it was continuing to co-operate with Chinese authorities.