Advances in oncology continue to improve treatment outcomes for patients worldwide, with innovative active pharmaceutical ingredients playing a vital role in modern cancer care. **Anastrozole**, a widely used aromatase inhibitor, is an important therapy for hormone receptor-positive breast cancer, helping reduce estrogen production and inhibit tumor growth. **Azasetron Hydrochloride**, commonly used to manage chemotherapy-induced nausea and vomiting, supports patient comfort and treatment adherence during cancer therapy. Leveraging more than 50 years of expertise in pharmaceutical manufacturing, Zhejiang Haizhou Pharmaceutical provides high-quality pharmaceutical intermediates, APIs, and custom manufacturing solutions that support the production of critical oncology medicines. Backed by cGMP-compliant facilities and international approvals from NMPA, US FDA, and EDQM, Haizhou Pharm is committed to helping global pharmaceutical partners deliver safe, effective, and reliable cancer treatments to patients around the world.