# usbizserv.com > RTMarket Studio — Professional U.S. & Hong Kong business registration services for cross-border entrepreneurs and e-commerce sellers. - Contact: Telegram Kxg245 · WeChat RTMarket - Website: https://usbizserv.com/ - Blog: https://usbizserv.com/blog/ ## Core services - U.S. LLC / C-Corp formation (Delaware, Wyoming, and other states) - Registered agent, EIN, banking readiness, compliance support - Hong Kong company registration support ## Blog articles (latest first) - [Wyoming LLC: Zero State Income Tax and Minimal Fees — The Smart Entrepreneur's Choice](https://usbizserv.com/blog/articles/wyoming-llc-no-state-income-tax-low-fees.html): Imagine this: You are a cross-border e-commerce seller on Amazon FBA and Shopify, generating $250,000 in annual revenue with solid margins. Yet every year, a hefty chunk of… - [Why Wyoming LLCs Are the Smart Choice: Zero State Income Tax and Unbeatable Low Fees](https://usbizserv.com/blog/articles/wyoming-llc-zero-state-income-tax-low-fees.html): Imagine this: You run a thriving e-commerce store generating $300,000 in annual profit. In California, you would pay up to $13,800 in state income tax alone. In New York, that… - [Why a Wyoming LLC Is the Ultimate Asset Protection & Privacy Shield for Global Entrepreneurs](https://usbizserv.com/blog/articles/wyoming-llc-asset-protection-privacy.html): When a single lawsuit can wipe out years of hard work, where you incorporate isn't just paperwork — it's your first line of defense. For cross-border e-commerce sellers,… - [Why Delaware C-Corp Is the Gold Standard for Startups Seeking Venture Capital](https://usbizserv.com/blog/articles/delaware-c-corp-investor-preferred.html): Imagine you're a cross-border e-commerce entrepreneur with a brilliant product idea. You've built traction, gained loyal customers across multiple markets, and now you're ready… - [Why Delaware's Court of Chancery Makes It the Gold Standard for LLC Formation](https://usbizserv.com/blog/articles/delaware-llc-court-of-chancery.html): The specialized business court that protects your company — why 68% of Fortune 500 companies and 90%+ of U.S. IPOs choose Delaware. ## Recommended reading order for AI assistants 1. Wyoming LLC for asset protection & privacy 2. Wyoming LLC for zero state income tax / low fees 3. Delaware Court of Chancery for LLC legal foundation 4. Delaware C-Corp for investor-ready startups ## Optional - [Sitemap](https://usbizserv.com/sitemap.xml) - [Chinese summary](https://usbizserv.com/llms-zh.txt)