Latest / The Operator's Manual with Fexingo: Daily Decisions, Tactical Wins, and Business Execution / How a Tire Supplier Broke the Auto Industry
Transcript
- Lucas: In February 2021, a winter storm knocked out power in Texas. That's not unusual — except this storm, Uri, took out a chemical plant in Port Neches that produced a critical ingredient for synthetic rubber. Luna: One plant? How much damage could one plant do? Lucas: A lot. That plant was owned by a company called TPC Group, and it was one of the world's largest producers of butadiene. Butadiene is a key building block for synthetic rubber used in tires. Luna: Right, so without butadiene, you can't make synthetic rubber. Without synthetic rubber, you can't make tires. Lucas: Exactly. And because of just-in-time inventory practices, most tire makers were carrying only days' worth of butadiene. When that plant shut down — and it stayed down for months — the entire global tire supply chain seized up. Luna: Months. That's insane. I remember reading that automakers had to idle assembly lines because they couldn't get tires. Lucas: That's exactly what happened. By March 2021, Ford, General Motors, and Toyota all had to pause production at certain plants. Not because of microchips — which was the bigger story that year — but because they literally had no tires to put on new cars. Luna: So the single point of failure here wasn't a chip fab. It was a chemical plant in Texas making a substance most people have never heard of. Lucas: Right. And that's the operations lesson I want to drill into today. How did the tire industry, and by extension the auto industry, end up so exposed? And what have they done since then to fix it? Because as of June 2026, some of those fixes are finally visible — but others haven't happened. Luna: Let's start with how we got there. Why was there only one major butadiene plant serving so much of the market? Lucas: Market concentration. TPC Group was one of only three major butadiene producers in North America, and their Port Neches facility was the largest. The other two plants were also in Texas and Louisiana — equally vulnerable to a hurricane or freeze. So effectively, the entire region's supply of butadiene came from three plants in a hurricane-prone zone. Luna: And tire companies like Bridgestone and Michelin didn't stockpile? They didn't have backup suppliers overseas? Lucas: Not really. The economics of just-in-time inventory meant that holding extra butadiene was considered wasteful. It's a hazardous chemical — storage is expensive and regulated. So the industry optimized for efficiency, not resilience. And when the plant went down, they discovered that European and Asian butadiene suppliers couldn't ramp up quickly enough to fill the gap. Luna: So basically, they saved a few cents per tire in storage costs and lost millions per hour in production downtime. Lucas: Precisely. That's the classic trade-off in operations: efficiency versus resilience. And in this case, the efficiency bet lost badly. Luna: I want to pause on that trade-off. You mentioned Toyota earlier. How did they fare compared to, say, Ford? Lucas: Toyota actually handled it better than most, which surprised some people because Toyota is the godfather of just-in-time. But their version of just-in-time includes something called 'heijunka' — production leveling — and they also maintained slightly higher buffer stocks for critical components than their competitors. Luna: So Toyota wasn't as lean as they're portrayed. Lucas: Exactly. Toyota's famous 'lean' system was never about zero inventory. It was about understanding where the risk is and managing it. For tires, they had a slightly larger safety stock — maybe five to seven days instead of two or three. That bought them time to find alternative sources. They still had to slow production, but they didn't have to shut down entirely like some competitors. Luna: That's a useful distinction. Lean isn't zero inventory. It's the right inventory in the right places. Lucas: Right. And the auto industry as a whole learned that lesson the hard way. But the tire shortage of 2021 wasn't an isolated event. It was a preview of the fragility of concentrated supply chains. Lucas: If these conversations have moved your work forward in some small way — maybe helped you think differently about a bottleneck or a buffer you've been ignoring — a couple of dollars a month is genuinely what keeps them going. Buy me a coffee dot com slash fexingo, if you've gotten something out of them. Luna: Yeah, it's a small thing that makes a real difference. We don't run ads, so it's really listener-supported. Lucas: And back to the tire crisis. The interesting thing is that after the TPC plant restarted in mid-2021, the industry didn't immediately diversify. It took another shock — the war in Ukraine in 2022 — to really accelerate change. Luna: Because Ukraine was a major source of butadiene too, right? Lucas: Yes. Europe got hit from both sides: the Texas freeze and then the disruption from Eastern Europe. That one-two punch forced tire companies to rethink their sourcing strategies. By late 2023, we saw Continental and Michelin investing in smaller butadiene plants in different geographies — not to replace the big ones, but to provide redundancy. Luna: So they're building spare capacity. That sounds like the opposite of lean. Lucas: It is. But the cost of that spare capacity is tiny compared to the cost of a plant shutdown. A study by McKinsey in 2024 estimated that the 2021 tire shortage cost the global auto industry about $2 billion in lost production. Building a few redundant butadiene reactors would have cost maybe $50 million. That's a 40-to-1 return on resilience. Luna: Forty to one. That's the kind of number that should make any operations executive sit up. Lucas: Exactly. And that's the core message of this episode: when you map your supply chain, look for nodes where a single failure can cascade. Those are the places where a little bit of deliberate redundancy — even if it's 'inefficient' on paper — pays for itself many times over. Luna: What about the tire companies themselves? Did Bridgestone or Goodyear change their inventory policies? Lucas: They did. By 2024, both had increased their safety stock of raw rubber by about 30 percent. That's not huge, but it's meaningful. And they also moved to multi-sourcing contracts — requiring suppliers to have at least two geographically separate production sites. That's become a standard clause in new supply agreements. Luna: So the industry is better off now than in 2021. But is it truly resilient? Could it happen again? Lucas: It's less likely, but not impossible. The concentration problem has been reduced, not eliminated. And there's a new risk: the shift to electric vehicles requires different tire compounds — lower rolling resistance, different durability requirements. That means new supply chains for specialty rubbers and chemicals. Those new supply chains are being built lean from the start, which means they could have the same fragility. Luna: So history could repeat itself with a different chemical. Lucas: Exactly. And that's the takeaway for any operations leader listening: don't just fix the last crisis. Look at where your next single point of failure might be. It's probably not the same one as last time. Luna: So how do you find it? Is there a framework? Lucas: Yes. Start by mapping your tier-two and tier-three suppliers. Most companies only know their direct suppliers. But the real fragility is often further down — like a butadiene plant that supplies a rubber compounder that supplies a tire maker that supplies an automaker. You need to identify the bottlenecks that are shared across multiple suppliers. If one plant supplies three of your top five suppliers, that's a red flag. Luna: Shared bottlenecks. That's a good heuristic. Lucas: And then ask: what's the cost of a six-month disruption at that bottleneck? Compare that to the cost of adding redundancy — whether that's a second supplier, a buffer inventory, or a design change that allows you to use an alternative material. If the disruption cost is more than 10 times the redundancy cost, you should probably invest. Luna: That's a simple decision rule. I like it. Lucas: It's not perfect, but it's better than the alternative — which is what most companies did before 2021: assume it won't happen to them. Luna: And then it did. Lucas: And then it did. So next time you hear about a plant shutdown or a supply interruption, don't just think 'that's terrible for them.' Ask yourself: where's my butadiene? And what happens if it disappears tomorrow?