The Speaker of Parliament has on Tuesday December summoned the Ministers of Sanitation and Water Resources (MSWR) and Local Government and Rural Development (MLGRD) to appear before parliament not later than December 10, to answer questions regarding their delay in signing off-taker agreements with a number of waste management companies who have invested over 1.5 billion dollars in constructing waste management infrastructure such as faecal matter treatment and recycling plants to pave way for smooth operations.