视源股份旗下医疗管理公司注册资本增至5亿元

This pattern is used to show a change in amount, number, or value from an original level to a new higher level. “由” introduces the starting point, and “增至” means “increase to.” It is very common in business, finance, and news reports.

This structure means that a person, company, or thing experiences or undergoes some event or change. In formal and news-style Chinese, “发生” is often used with nouns like “变化”, “变更”, “事故” and so on.

This pattern is used to state when an organization, company, or institution was founded. “于” is a formal preposition meaning “in/on/at,” often seen in written Chinese.

This pattern introduces examples within a larger category. “包括” means “include,” and “等” at the end shows the list is not complete, similar to “etc.” This is very common in formal descriptions of scope, content, or business activities.

This is a formal business structure meaning that one company fully owns the shares of another company. “由” introduces the owning party, and “全资持股” means holding 100% of the shares.