Common use of Stock Exchange Listing and Delisting Clause in Contracts

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSENYSE American, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE American determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE American as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx XXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx XXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse listing” “reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse listing” “reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx XXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Stock Exchange Listing and Delisting. Camber shall use its reasonable best efforts to cause the shares of Camber Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time. In the event the NYSE determines that the Merger constitutes, or will constitute, a “back-door listing”/“reverse listing”/”reverse merger”, Camber and Viking shall cooperate in good faith to ensure that the Combined Company (and its common stock) qualifies for initial listing on the NYSE American, pursuant to the applicable guidance and requirements of the NYSE as of the Closing. Viking shall cooperate with Camber and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Laws and rules and policies of OXXXxxxxxx.xxx XXXXxxxxxx.xxx to enable the delisting by the Surviving Entity of the shares of Viking Common Stock from the OTC Link Alternative Trading System and the deregistration of the shares of Viking Common Stock under the Exchange Act as promptly as practicable after the Effective Time.