Sounds like you're complaining to vacuum of black holes.
Did you ask Boeing, Airbus, Lockheed Martin, Mitsubishi or Embraer to submit RFI or RFP to Bangladeshi procurement department or DGDP?
I still don't know why Bangladesh is always stuck in cheap Excess Defense Article? It takes very long time to settle access defense article because those items directly comes from military then defense contractors decommission them and put on hold. Some excess defense articles are put on sale list in advance before it is actually available for buyers.
What do you do with almost US$4 billions defense budget? Maybe massage with happy ending!!! Here is the address of foreign military sale.
Defense Security Cooperation Agency
2800 Defense Pentagon
Washington, DC 20301-2800
USA
Telephone:
+1 (703) 697-9709
For DSCA Public Affairs Queries:
Public Affairs Queries
Email DSCA:
Info Mailbox
Web
www.dsca.mil
This is how it works. Alternatively, contact Lockheed Martin and ask them to supply military transport aircraft. Lockheed Martin will take care of everything. It took India to learn several years how American Foreign Military sale works. Now they know how to deal with it. Arabs are very special case when comes to American Foreign military sale.
Good Luck.