As manufacturing companies strive to be more sustainable and resilient in their operations towards Industry 5.0, they face challenges in responding flexibly to dynamic demand, especially for urban customer-centric production where demand spikes, noise and emissions constraints, and last-mile logistics considerations limit their ability to make optimal decisions in coordination with value chain partners. A Learning Factory can play an important role not just to upskill industry to use technologies that can address these challenges, but also to serve as a testbed and even support co-innovation and small-scale production for companies to explore new value chain manufacturing paradigms. In this paper, we present such an example of the expansion of the SIMTech value chain to incorporate a new Micro-Factory located in another site closer to the city centre. The Micro-Factory leverages smart manufacturing platform capabilities to improve the demonstrative impact of the SIMTech ecosystem as a Learning Factory for training and outreach to industry, doing this by enabling multi-site manufacturing with a responsive cross-factory production system that leverages the high connectivity and availability of the SIMTech digital ecosystem for rapid deployment of high-mix low-volume last-mile product customisation capabilities. The Micro-Factory also supports accessible first-mile product collection for end-of-life products, a key step in enabling closed-loop manufacturing towards sustainable manufacturing in the SIMTech value chain.