

Rock Co., Ltd. is a GEO Group company that operates “Pleasure”—a store specializing in the purchase of used expert agricultural machinery, and “Kotaro”—a store specializing in the purchase of antiques and paintings.
Together, these stores are seeking to promote the circulation and re-use of valuable used products.
Going forward, we will double our efforts to expand the sales channels and profitability of these two ventures while expanding our agricultural equipment business and increasing the number of equipment purchasing sites, and while promoting the purchase of antiques, paintings, and other major merchandise.

Pleasure purchases used agricultural machinery from Japan Agricultural Cooperatives (JA Group), farmers, and agricultural equipment dealers, and re-sells them via its own stores either wholesale to trading companies or through e-commerce.
Pleasure boasts the industry’s longest track record of purchasing and appraising used agricultural machinery, and buys and sells tractors, combine harvesters, rice planters, and various other agricultural equipment, regardless of manufacturer. We also handle heavy machinery such as forklifts, hydraulic excavators, and wheel loaders.
Our professional and experienced team of buyers visit potential sellers to provide a free on-site estimate and appraisal.


Kotaro specializes in the purchase and resale of antiques and works of art, and operates mainly in urban areas of Japan.
We make on-site customer visits to purchase antiques and works of art and subsequently sell them at auctions, markets, and e-commerce sites.
Unlike typical commodities, antiques and works of art often change hands after being passed down from generation to generation. At Kotaro, our experienced and knowledgeable staff carefully assess each item to determine their appropriate value. We help our many customers to understand the quality of their antiques and works of art and to pass them on to the next generation to preserve their value, while also recognizing the considerable sentimental value these items hold for their current owners.