Nanu’s fifth automated line is under development, not a fifth line confirmed to be operating. An October 13, 2026 Electronic Times report on the company says custom-built equipment through unit No. 4 is operating at its Ansan plant, while an automated No. 5 line is being developed to increase production speed. The move from manual and semi-automated processes to full automation, higher output and lower unit costs is a plan. The report provides no completion date, commissioning results, production approval or measured cost reduction for No. 5.
Existing products are not evidence of output from a new line
Nanu develops molded-fiber packaging using agricultural and food-processing by-products and surface-coating technology. Electronic Times describes citrus-processing residue, rice husks and brewer’s spent grain in its material plans, alongside reported supply of salad and chicken-steak trays and discussion of coating and repulpability. Established customer supply and the status of a new production machine are separate facts. Existing delivered trays cannot be assigned to the fifth line without a production record.
A July 6, 2026 interview with CEO Lee Yun-no in Future Chosun describes citrus-residue packaging, coatings and customer deliveries; it also presents a flexible, lower-volume production system as a next goal. This is a separate earlier interview about business direction, not independent corroboration of the numbered machines, installation or a trial of No. 5. Its delivery-volume and environmental-impact assertions should not be recast as performance data for the new equipment.
| Stage | What the public report says | What remains unverified |
|---|---|---|
| Existing custom equipment | Electronic Times reports operation through No. 4 at Ansan | Utilization, machine-specific acceptance records, capacity by SKU |
| Automated No. 5 line | Electronic Times reports it is in development | Installation, commissioning, acceptance, start date, approved SKUs or measured output |
| Expected automation benefits | A plan to increase production and lower unit costs | Comparable pre/post results with a baseline period and measurement method |
The numbered-machine status above rests on one newsroom report. It is not a direct review of Nanu’s equipment register or an independent factory acceptance record.
What a buyer should request before relying on the fifth line
These are editorial due-diligence questions, not a claim that Nanu has completed any No. 5 testing. The supplier and customer should agree on evidence appropriate to the actual product and order.
- Stage and date: Distinguish design, fabrication, delivery, installation, safety checks, trial runs and commercial approval, with dates and sign-off owners. Keep existing supply through No. 4 separate from proposed supply from No. 5.
- Comparable performance: Ask whether good units, rejects, downtime and changeover can be compared for the same tray geometry, fiber blend, coating and drying conditions. A target speed is not a measured production rate.
- Quality and delivery: Request SKU-specific dimensional, strength and moisture/grease requirements, applicable food-contact evidence, lot traceability, customer acceptance and repeat-shipment records. A prototype or an earlier customer relationship does not qualify every product made on a future line.
For now the supported formulation is: one report says equipment through No. 4 is operating, while automated No. 5 is in development. Trials and commercial operation of the fifth line require new evidence.
About the Author
PackingMaster is the PaperPackLog editor, covering paper packaging markets, products, and technical questions.