Background: The primary purpose of International commercial law is to provide a regulatory framework for businesses engaged in cross-border transactions. It standardizes legal regulations, ensuring predictability and fairness in international trade and commerce. Methodology: The authors of this article analyzed, reviewed and made a synergistic approach comparing peer reviewed papers written on principles of International commercial law with a taste of measured and concise critiques where the need arouse. Search engine such us google scholar, research gates, pub med for highly sort out and accredited works published were reviewed and those that suited the research article were studied. In all the authors studied about 150 peer reviewed articles and used about 15 books on the subject area. Results: Commercial law focuses on the sale and distribution of goods and transaction financing. Business law focuses on the legal needs of forming a company and property issues such as leasing office space. Corporate law is a subspecialty of commercial law and focuses on the legal matters of large corporations, such as mergers and acquisitions. Corporate law is a subspecialty of commercial law and focuses on the legal matters of large corporations, such as mergers and acquisitions. Conclusion: The researchers concurred and attested to the fact that the key principles of International commercial law shall always include the principle of freedom of contract, pacta sunt servanda (agreements must be kept), lex mercatoria (the law of merchants), and the principle of fairness and good faith. These principles aim to facilitate global trade efficiently and equitably.