Las Vegas, Nevada. June 28, 2018—RocketFuel Blockchain Company (“RocketFuel”) a developer of blockchain-based technology that offers highly-efficient check-out systems to eCommerce, today announced the completion of a reverse merger with B4MC Gold Mines, Inc. (“B4MC Gold Mines”) (OTC PINK: BFMC). The merger was effected through a reverse takeover transaction pursuant to a Contribution Agreement whereby B4MC Gold Mines issued 17,001,312 shares of common stock to the shareholders of RocketFuel. As a result of the transaction, a change of control ensued whereby RocketFuel became a wholly-owned subsidiary of B4MC Gold Mines, and the RocketFuel shareholders became the holders of 75% of the issued and outstanding shares of B4MC Gold Mines. Over the next several weeks, the combined company (the “Company”) intends to change the name of B4MC Gold Mines to RocketFuel Blockchain, Inc. and file necessary applications to change its ticker symbol.