Sai Juki Engineering Ltd., established in 2024, is a Japanese private company engaged in manufacturing, repairing, renting, selling, leasing, and importing/exporting construction, agricultural, and industrial machinery, automobiles, trucks, and related parts. The company also provides transportation, dismantling, temporary building solutions, training, temporary staffing, various construction services, waste management, mail order services, international trade agency services, real estate, power generation, and secondhand goods trading. The company has traded products including self-propelled mechanical shovels, excavators and shovel loaders, and machinery for public works and building.