Form of Amendment No. 1 to Subscription Agreement in the May 2017 Private Placement Offering

“Price Protection. If during the period from the first Closing of the Offering until the May 1, 2019, the Company shall issue Additional Shares of Common Stock (as defined below) for a consideration per share, or with an exercise or conversion price per share, less than the Purchase Price (adjusted proportionately (or if it cannot be adjusted proportionately, then equitably)) (the “Lower Price”), the Subscriber shall be entitled to receive from the Company (for no additional consideration) additional Shares equal to: (i)(a) the total Purchase Price paid pursuant to this Agreement for the Unsold Shares (defined below), divided by (b) Ninety Percent (90%) of the greater of (A) the Lower Price, and (B) Five and a Half United States Dollars (US$5.50); minus (ii) the number of Unsold Shares. “Unsold Shares” shall mean, as of the time of the closing of the transaction for any issuance of Additional Shares, the total number of Shares Subscriber purchased pursuant to this Agreement (the “Purchased Shares”) minus the total number of Purchased Shares the Subscriber has, as of that time, sold, assigned, or transferred to a person not affiliated with the Subscriber.”