Led negotiations with OEMs to manage new tire development, ensuring alignment with customer needs and business milestones. Managed technical requirements and project schedules across global cross-functional teams. Provided end-to-end technical support, from sales quotations and product development to manufacturing and after-sales. Developed and maintained strong OEM relationships, offering technical insights and solutions. Handled OEM market claim issues, resolving them efficiently to ensure customer satisfaction. Supported key OEM projects, including Toyota Next IMV, Mitsubishi Triton, BMW X5, Mercedes-Benz GLC, Ford B515, and GMI700.