The direct answer
Critical Supply Chain Engineering maps the exposures that matter, identifies credible alternatives and tests whether Portugal can support sourcing, partnership, Build, Invest or Acquire. It is a diagnostic entry point, not a capital route in itself.
What must be understood
The analysis covers critical components and services, supplier concentration, substitutability, lead time, quality, intellectual property, logistics, regulation, demand scenarios and the cost of disruption—not just unit price.
When sourcing becomes investment
Investment may be justified when supply is strategically critical, markets cannot provide sufficient resilience, capability must be secured or developed, or the economics of control exceed the costs and risks of ownership.
NAUPT recommendation
Begin with exposure and decision thresholds. Do not force the conclusion toward Portugal or toward a transaction; qualify the case and preserve the option to recommend no-go.