Tai Yong Medical

Tai Yong Medical is the world's largest augmentation and biotech company, based out of Heng Sha.

Through a series of in-game emails, it is revealed that it has been steadily taking over augmentation-centered corporations across the world, either by buying them, forcing them into bankrupcy, or stealing their technology.

All that was part of the plot by the Illuminati, to have complete control over the augmentation technology around the globe. It is also revealed that the company's CEO, Zhao Yun Ru, is an aspiring member of the Illuminati.

Later in the game, augmented people worldwide, including Adam Jensen began to experience physical pain and distorted vision, apparently caused by faulty biochip, and were asked to visit LIMB clinics for replacements, manufactured by TYM. In reality, the new chips were designed to limit the enhanced abilities of augmented individuals. The players have the options of installing the new chip during the second visit to Heng Sha, unaware however of its hidden function.

Later on, before the fight with Jaron Namir, if the biochip was installed, Zhao Yun Ru is able to weaken the player, activating the chip's 'killswitch', as Adam refers to it. The function causes the HUD and retinal implants to malfunction, distorting the screen and allowing Namir to catch the player unaware easily.

Trivia
Inside the Tai Yong Medical building is a Praxis Kit on the second floor.