Gaining Access to Tai Yong Medical

Chapter 9 - Corporate Warfare Arie Van Bruggen had no qualms admitting involvement in the attacks against Sarif, and even gave Jensen the name of the woman who'd hired him: Zhao Yun Ru, president of the Tai Yong Medical Corporation. Seems TYM wants to monopolize the augmentation industry, and hired black op mercenaries to destabilize its competitors. But to prove this, Jensen needs to infiltrate the biotechnology giant and locate recorded evidence...

M2 - Gaining Access to Tai Yong Medical is a main mission in Deus Ex: Human Revolution.

Overview
Before you can enter the Tai Yong Medical facility, you will need van Bruggen to fabricate a new TYM pass to gain access to their employee shuttle.

However, van Bruggen requires an existing card from their security officers to create the pass.

Steal an employee card from a TYM guard
The Player can find this pass on the 4th Floor of Hung Hua Hotel at the last room. The card will be on the table.

Bring the employee card to van Bruggen
When you return to van Bruggen, the situation will get out of hand. Put a gun in your inventory you can spare, because Arie will ask for one. If you've given van Bruggen a weapon, he will contact you at the end of the Shanghai mission and reward you with 2000 credits for helping him escape.

Escape the Alice Gardens pods ambush
Escape the building via the laundry rooms.

Go to TYM via the employee shuttle
It's beside the LIMB clinic.