"Contract for sale" includes both a present sale of goods and a contract to sell goods at a future time. Sale and supply agreements vary in length and complexity depending on a variety of factors, such as: ∎ The relationship between the parties.The purpose of the CISG is to provide a modern, uniform and fair regime for contracts for the international sale of goods. The transactional attorneys at Hendershot Cowart PC have valuable experience guiding business owners and investors through the purchase or sale of a business. This Contract shall be construed and interpreted in accordance with the applicable laws of the State of Texas and City of Houston. With crossborder agreements, international contract law comes into play. Consult an attorney before entering into international contracts. In a controversy arising from a contract between BP Oil International and an. International Fuel Trade Agreement (IFTA). You'll also want to keep up with the latest small business trends.