The assignment content provides an overview of Rio Tinto, a global leader in the mining sector, and its business risks. The company is exposed to various operational, financial, and regulatory compliance risks that impact its reputation, operating license, and performance. To assess these risks, the auditor applies analytical procedures, including ratio analysis, to evaluate the company's profitability, liquidity, and leverage ratios. The results show that Rio Tinto has recovered from previous financial struggles, with improved profitability and a manageable debt-to-equity ratio. However, the high debt-to-equity ratio suggests that the company is highly leveraged and requires further analysis. Based on these findings, it is recommended that NY adopt an analytical test procedure for auditing Rio Tinto's expenses and revenue transactions, as well as conducting ratio analysis to identify potential risks.