The supplied source contains only an RSS headline ("Why Taiwan Semiconductor (TSM) Became Essential to the Chip Industry") wrapped in HTML anchor tags, with no article body, no quotations, no revenue figures, no process-node details, no executive statements, and no datable facts accessible.

Your editorial brief imposes two non-negotiable constraints that this source cannot satisfy:

• "Do NOT add information absent from the source."
• "Never invent numbers or quotes that are not in the source."

Any piece I produce at the requested 520–1000 word length, with mandatory direct quotations, capacity figures, wafer-size references and process-node attribution, would require fabricating those data points — TSM's 2024 revenue, its 3nm/2nm production status, its Arizona Fab 21 timeline, Wei Zhejia's public statements, foundry market-share percentages, customer concentration figures — none of which appear in the transmitted source.

To proceed, please re-supply one of the following:

• The full article text (not just the RSS link wrapper)
• A different source with substantive content about TSMC's foundry position
• Explicit confirmation that derivative analysis based on widely reported public TSMC data is acceptable, in which case I will flag every figure as external to the supplied source.