It means the seller paid for a more expensive annual subscription. It does tell you the company is genuinely trading. It tells you nothing whatsoever about the quality of what you receive.
What the badge is
It is a tier of paid advertising and platform services. The annual fee buys visibility, enquiry volume and access to certain platform features. That is the whole of it.
There are real differences between tiers, but they are commercial rather than quality-related. A seller on a higher tier gets access to more inbound enquiries and can quote on more of them. So the badge partly reflects how much a company spends on being found.
What it does tell you
One useful thing, and it is not nothing: the company has a real operating history behind the profile. Businesses that appear last week with a polished page do not carry a long-standing subscription. So the badge is weak evidence of existence.
What the factory video proves
At most two things: that a factory exists, and that it is associated with the company promoting it.
It does not follow that the product you have been quoted comes from that factory. A company can film a perfectly good plant and source your product somewhere else entirely. The video is evidence about the video.
How I would use it
Read it once, put it down. Do not treat it as a quality signal, and do not treat its absence as a warning. Spend your attention on the things that actually move what ends up in your container: the production process, the checks inside it, the specification written down, and who carries the risk when it is wrong.