who are the authorized manufacturer and supplier of this part?

[twinkle]

NRF24L01+PA+LNA wireless modules 1100meters (with antenna)

[Scott]

Here is an example of an nRF24L01+ FCC/IC/CE certified long range (1Km) module, available since 2012 and used in many commercial products. www.taloncom.com/NordicRFmodules.htm