Market share of top vendors grow, while all others are shrinking.
All thanks for exclusive contracts and non standard prices (no one of top 5 gets CPUs or chipsets for announced pricing all use private contracts).

Pressure continues to increase on businesses operating in China to comply with an increasingly comprehensive and strictly enforced data privacy regulatory regime. Those companies that fail to bring their practices into compliance face ever-growing legal exposure, and the risk will only escalate after 1 December 2019, when the Chinese government implements the latest legislative update to its multi-level protection scheme (MLPS) for data security.

https://www.reedsmith.com/en/perspectives/2019/10/mlps-20-chinas-enhanced-data-security-multi-level-protection

Chinese Cybersecurity Law (CSL), a broad piece of legislation that governs almost every aspect of online and network activity and gives law enforcement the authority to inspect and monitor businesses, up to and including in-person inspection on company premises.

Now there is a new version of China’s Multi-Level Protection Scheme law, known as MLPS 2.0, which for years has governed IT security standards for what the government broadly deems critical infrastructure. Under the new version, what constitutes “critical” is widened, and the threshold for requiring government inspection and monitoring is lowered, potentially having repercussions for global companies with Chinese operations.

https://www.csoonline.com/article/3448578/chinas-mlps-20-data-grab-or-legitimate-attempt-to-improve-domestic-cybersecurity.html

It'll be look staggering as technologies and society will start cracking regressive governments.

Mechanical switches are used even.