Here are the letters distributed to various unions.
- Nigeria Civil Service Union
- Association of Nigeria Aviation Professionals (ANAP)
- Academic Staff Union of Colleges of Agriculture (ASUCA)
- Senior Staff Association of Nigerian Universities (SSANU)
- National Union of Civil Engineering, Construction, Furniture and Wood Workers (NUCECFWW)
- Medical and Health Workers Union of Nigeria (MHWUN)
- National Union of Petroleum and Natural Gas (NUPENG)
- Nigeria Union of Railway WorkersJudicial Staff Union of Nigeria (JUSUN)
- National Union of Electricity Employees of Nigeria (NUEEN)
- National Union of Banks, Insurance and Financial Institution Employees
- Amalgamated Union of Public Corporation, Civil Service Technical and Recreational Services Employees (AUPCTRE)
