No. Big foreign corporations, like in all countries, VPN back to their home country. The same all over the world.
Internal policy dictates this, all over the world.
Email is usually on self-hosted Exchange.
Corporate firewall blocks stuff like Youtube and Facebook - also the same over the world, but some users with the business need can access whatever the business need dictates.
Some large companies just bypass the national firewall for speed reasons - this is negotiated with the government on an individual basis - pragmatically this makes sense, as the traffic is 100% encrypted back between fixed sources and destinations, and inspecting it just wastes resources for all parties. Some corporations may also have their websites for the public access bypass any filtering, also for speed reasons (for example, internet banking).
Indeed. The point of the GFW is to prevent political unrest. MNC's workers are unlikely to be fermenting dissent at work. Deploying the GFW on their connections doesn't really aid the government as a whole in terms of staying in power, but it does mean that MNCs will get pissed off and may reduce their presence in China.
Internal policy dictates this, all over the world.
Email is usually on self-hosted Exchange.
Corporate firewall blocks stuff like Youtube and Facebook - also the same over the world, but some users with the business need can access whatever the business need dictates.
Some large companies just bypass the national firewall for speed reasons - this is negotiated with the government on an individual basis - pragmatically this makes sense, as the traffic is 100% encrypted back between fixed sources and destinations, and inspecting it just wastes resources for all parties. Some corporations may also have their websites for the public access bypass any filtering, also for speed reasons (for example, internet banking).