Chapter 476 We have a relationship where we can trust each other

When Si Jinghuai heard this, he had basically guessed most of what happened that year.

His face darkened slightly and he asked , " Does he know where the drug came from?"

Sang Yan played the second recording, which was exactly the same question as Si Jinghuai.

In the recording, Sang Yan was heard asking this question.

Doctor Li was either hesitating or thinking about this question.

Then he said , " Actually, you should know about this pharmaceutical factory."

Si Jinghuai's expression changed instantly. He guessed something, but he was not sure.

Then, Dr. Li said , " Actually, this pharmaceutical factory is owned by the Si family, or in other words, the Si family holds shares. If you want to investigate, it's not difficult to find out."

After saying this, Dr. Li sighed , " It's not that I won't help you recall what happened back then, but these are all I can remember."

Sang Yan’s recording also ended here.

He looked a