Economizer Tube Bundle from Mexico
A heat exchanger assembly consisting of finned tubes designed to recover waste heat from flue gases in boiler systems, preheating feedwater to improve efficiency. It is classified under HTS 8404.90.00.00 as a part of auxiliary plant for boilers of headings 8402 or 8403. This component enhances overall thermal performance in steam power units.
Duty Rate — Mexico → United States
13.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify compatibility with specific boiler models under headings 8402/8403 via technical specs to avoid misclassification
• Provide detailed engineering drawings and material certificates (e.g
• ASME-compliant steel) for valuation and origin determination
• Watch for anti-dumping duties on certain steel components; declare as 'parts of economizers' explicitly on commercial invoice