What he referred to as "transaction" was understood by all three present individuals. His implication was that Song Fan should start producing poison.
Song Fan looked at him steadily and remained silent. The requirements for such a poison were indeed high. Besides, she had researched Jason's background.
Although the second son of the Brown Group rarely appeared in public, some of her foreign partners were familiar with him. They called him a "genius lunatic," meaning that he was undoubtedly a genius in the field of research but also a complete lunatic who could go to great lengths for his studies.
Faced with such a genius, Song Fan couldn't be sure if her poison would be easily countered by Jason, especially considering that he also had Snow Red Flowers.