a) The Company made a share issuance to NEIP under the consulting agreement announced on June 16, 2017. SDI issued 507,550 common shares at a price of $0.1231 per share to satisfy the payment of $62,500 due in December 2017. The shares are subject to a four-month holding period.

b) The Company made a share issuance to Paul Jensen under the employment agreement announced on August 28, 2017. SDI issued 339,370 common shares at a price of $0.1473 per share to satisfy the payment of $50,000, payable for the months of October to December 2017. The shares are subject to a four-month holding period.

c) On April 13, 2018, the Company entered into a Purchase and Sale Agreement (the “Agreement”) with André Buys, a resident of South Africa (“Mr. Buys”), pursuant to which the Company purchased from Mr. Buys a portfolio of registered patents, provisional patents, and other intellectual property relating to air and/or gas fired long guns or pistols, including pump action launchers and munitions used with such pistols and long guns, including self-stabilizing shaped or “finned” rounds (the “Portfolio”). As consideration for Portfolio, the Company (i) paid Mr. Buys $100,000, (ii) agreed to pay Mr. Buys either $500,000 in cash or $750,000 worth of Company stock within two years (the “Second Payment”), (iii) agreed to issue 1,500,000 options or warrants for shares of the Company’s common stock to Mr. Buys within 120 days with a strike price equal to the Company’s stock price on April 13, 2018 and a trigger price of $0.30, $0.50 and $1.00 for each batch of 500,000 options, respectively. The Company’s stock price must close above the trigger price for 20 days in order for the option or warrant to be triggered. The options or warrants shall have a seven year life from grant date and Andre Buys must remain employed by the Company for three years in order for the options or warrants to vest, and (iv) agreed to pay Mr. Buys certain royalty payments for sales of products by the Company using technology covered by the Portfolio. Until the earlier of, the second anniversary or the date the Second Payment is made, the royalty will be 10% of the Net Sales Price (“NSP”). The royalty will then be reduced to 4% till the sixth anniversary, 3% till the eighth anniversary, and 2% till the last expiration date of any of the intellectual property in the Portfolio. Until the royalty exceeds $25,000 per year, the Company is committed to a minimum payment of $25,000 per year effective on the earlier of one year from closing or upon Andre Buys relocation to Boston. In the event that the Company fails to make the Second Payment, the Portfolio would revert to Mr. Buys, but the Company would retain perpetual, irrevocable, exclusive and non-exclusive licenses to use technology with respect to the Portfolio and any technology developed within two years of April 13, 2018. In addition, the Company has hired Mr. Buys as its Chief Technology Officer at a starting salary of $10,000 per month. The company agrees that it will not terminate Andre Buys except for cause prior to the end of three years. The Company is liable to reimburse Andre Buys for up to $10,000 in closing costs.