Supporting industry is an integral part of any manufacturing value chain, particularly so in the current globalized world where improvements in technology and logistics have made it more cost-effective for firms to be focusing only on activities they have comparative advantage in, and outsource the rest. This case study on Mexico is one of the three which studies the policy experiences of APEC economies in promoting competitive, highly-skilled and modern supporting industries. Australia and Viet Nam make up the other two. A synthesis report then brings together these experiences; it looks at the motivations and policies for developing their supporting industries, and distills some key takeaways and what can be done to improve the quality of policies for promoting supporting industry among APEC economies.