exhibit 10. 2 text marked by [ * * * ] has been omitted pursuant to a request for confidential treatment and was filed separately with the securities and exchange commission. statement of work background : arete sigma, llc ( a / s or the llc ) is co - owned 50 % - 50 % by arete innovative solutions ( arete ) and sigma labs ( sigma ). the purpose of the llc is to enable and implement sales and manufacturing transactions and to distribute costs and benefits fairly between its two members. because the llc : a. owns no property and any and all assets acquired by or brought to a / s by arete or sigma will remain 100 % owned by arete or sigma, as applicable ; a. owns no property and any and all assets acquired by or brought to a / s by arete or sigma will remain 100 % owned by arete or sigma, as applicable ; a. b. has no employees or payroll ; b. has no employees or payroll ; b. arete and sigma are each contracting business services to a / s. 1. arete ’ s services and costs are as follows : customer development functions : 1. arete will provide marketing development and services. 1. arete will provide marketing development and services. 1. 2. arete will provide customer / project development services. 2. arete will provide customer / project development services. 2. engineering cost reimbursement : arete will be reimbursed by a / s for reasonable and documented travel, customer and project development expenses. engineering functions : 3. arete will provide product engineering consulting services and customer education. 3. arete will provide product engineering consulting services and customer education. 3. 4. arete will perform build file model modifications, manufacturing process engineering for product manufacturing. 4. arete will perform build file model modifications, manufacturing process engineering for product manufacturing. 4. engineering cost reimbursement : arete will be reimbursed by a / s for the arete employees work for a / s engineering at their fully burdened cost rates to arete. manufacturing functions : 1. arete will provide post processing including machining, surface finishing, inspection and nondestructive testing ( ndt ) as required. 1. arete will provide post processing including machining, surface finishing, inspection and nondestructive testing ( ndt ) as required. 1. 2. arete will provide supplier management and supply chain