Core Viewpoint - The article discusses the regulations and implications of employee education expenses, supplementary medical insurance, and R&D expenses in relation to tax deductions for companies, emphasizing compliance with tax laws and the importance of proper categorization of expenses [7][11][14]. Group 1: Employee Education Expenses - Companies are encouraged to support employees' education, but expenses for social degree education must be borne by individuals and cannot be deducted from employee education funds [7]. - The regulation states that costs incurred for employees' social degree education do not qualify for tax deductions under employee education expenses [7]. Group 2: Supplementary Medical Insurance - Companies have recently purchased supplementary medical insurance for employees, with a deduction limit set at 5% of total employee wages [9]. - Payments made by companies for supplementary medical insurance for retired employees are not eligible for tax deductions [10][11]. Group 3: R&D Expenses - R&D expenses related to product upgrades are eligible for tax deductions under specific conditions, but routine upgrades and direct applications of existing technologies do not qualify [14]. - The article outlines that only certain R&D activities are eligible for tax deductions, excluding routine upgrades and market research [14].