What does the STC stand for?

Could you please clarify what the abbreviation "STC" stands for in the context you're referring to? It's important to note that abbreviations can have multiple meanings depending on the industry or specific context they're used in. For example, in the world of cryptocurrency and finance, "STC" could potentially stand for a specific token, project, or even a regulatory standard. Without more context, it's difficult to provide an accurate definition. Could you provide some additional information or context to help me better understand what "STC" represents?