C159 There's a Problem with the Source

"Miss Mu, I think you should have noticed something wrong with this contraband."

Mu Qing took a deep breath and put down the composition report in her hand. She felt that her head was so heavy that she could not lift it up. "I do not know much about this kind of thing. The test report said that... It only exists in North America, through the purification of the refining technique