Group 1 - The article discusses the compliance of enterprises' salary systems with industry and regional standards, emphasizing that salary adjustments should be orderly and that enterprises must fulfill their tax withholding obligations [4][6]. - It defines the total salary amount as the sum of actual salaries paid by enterprises, excluding employee welfare expenses, social insurance fees, and housing funds [4][6]. - The article outlines the scope of employee welfare expenses, including costs related to welfare departments, various subsidies, and non-monetary benefits provided to employees [4][6]. Group 2 - It specifies that all taxpayers engaged in production or business activities must conduct annual corporate income tax settlement, regardless of profit or loss [11][12]. - The deadline for taxpayers to complete the annual tax settlement is within five months after the end of the tax year, with specific provisions for those terminating operations [12][13]. - Required documentation for tax declaration includes the corporate income tax return, financial statements, and any other relevant materials as mandated by tax authorities [14][17].