Manufacturing Technology (MANTECH) - No Cost Conference/Symposium. This is a non-personal services requirement to provide contractor support to plan and execute ManTech hosted events. The Contractor s... Manufacturing Technology (MANTECH) - No Cost Conference/Symposium. This is a non-personal services requirement to provide contractor support to plan and execute ManTech hosted events. The Contractor shall support ManTech with annual DFMC that brings together industry and government on topics related to the ManTech program and the advanced manufacturing industrial base.