What is the expected growth rate for WFE through 2025 
 trend that's important is many of the customers for chips are moving to adjusting case inventory posture, which means not only just buying what they need but also putting some insurance in place from a parts standpoint.
And finally, you've got the number of regions in the world trying to become self-sufficient in chips, which is driving even more equipment. So I think WFE is likely to grow quite well in 2022. And probably, as an industry, we're going to be limited by parts, right? So it hits us, it hits the rest of the critical subsystem suppliers and it hits our customers. And so we all have to work together and make sure we get the parts we need to expand capacity in this very important ecosystem.
Mehdi Hosseini -- Susquehanna International Group -- Analyst
Sure. Thank you. And just a follow-up to that. The same OEMs have a consistent message that this is secular and we are in a new paradigm shift, especially with localization and WFE will continue to grow probably through 2025.
And given the premises what are the opportunities? Or what would it take for your OEM customer to become a partner with you and co-invest for supply chain, for hub inventory management so that once we come out of this later this year, both parties are able to help each other and benefit from these secular trends?
Steve Kelley -- President and Chief Executive Officer
Yeah. Mehdi, I think really it's not a question of money. We have the ability to expand our own capacity relatively quickly and at relatively low cost. The issue is getting the part.
So it's really our suppliers expanding their capacity and their ability specifically to build more product at older nodes. So almost everything we buy is 28 nanometers to 180-nanometer type product. So it's mature. And it's been in contention this year as the automotive industry came back to life and basically economies boomed around the world.
So we're all fighting for that limited capacity. So what's happening today is we're seeing the IDMs make more investments in older nodes. And we're also seeing the same things happening at the foundries. So it takes some time to bring the capacity down, but it will come.
And I think over the next six to 12 months, we're going to see things settle down.
Mehdi Hosseini -- Susquehanna International Group -- Analyst
Thank you, Steve.
Steve Kelley -- President and Chief Executive Officer
You're welcome.
Operator
Our next question comes from the line of Tom Diffely with D.A. Davidson. Please proceed with your question.
Tom Diffely -- D.A. Davidson -- Analyst
Yes. Thank you for the questions. Steve, just following up on Mehdi's question. So they think the OEMs will require you to hold a larger inventory going forward or maybe have a larger hub inventory going forward?
Steve Kelley -- President and Chief Executive Officer
Well, yeah, I think that two things will happen. One is our OEM customers will rebuild their safety stocks, and they may adjust those stocks a little bit depending on their risk tolerance. So that's probably going to be good news for us. The second is we're examining our own supply chain.
And where we can, we're going to build inventory where we identify weak links. And we're also going to upgrade. So in many cases, we're buying parts that are built in factories that may not have a long-term expansion plans. And so at that point, it's up to our engineers to upgrade the technology so that we're using parts that will be available and plentiful for many years to come.
So those two actions will be proceeding this year.
Tom Diffely -- D.A. Davidson -- Analyst
OK. Great. And maybe just a little bit more color on the supply dynamics. When you get a slug of product like you did in the fourth quarter, is that driven by your core suppliers just giving you more allocation? Are they actually producing more? Are you finding new suppliers or possibly even buy markets?
Steve Kelley -- President and Chief Executive Officer
Well, in this case, there was a couple of our core suppliers who allocated more to us. And there's a lot going on behind the curtain, quite frankly
 trend that's important is many of the customers for chips are moving to adjusting case inventory posture, which means not only just buying what they need but also putting some insurance in place from a parts standpoint.
And finally, you've got the number of regions in the world trying to become self-sufficient in chips, which is driving even more equipment. So I think WFE is likely to grow quite well in 2022. And probably, as an industry, we're going to be limited by parts, right? So it hits us, it hits the rest of the critical subsystem suppliers and it hits our customers. And so we all have to work together and make sure we get the parts we need to expand capacity in this very important ecosystem.
Mehdi Hosseini -- Susquehanna International Group -- Analyst
Sure. Thank you. And just a follow-up to that. The same OEMs have a consistent message that this is secular and we are in a new paradigm shift, especially with localization and WFE will continue to grow probably through 2025.
And given the premises what are the opportunities? Or what would it take for your OEM customer to become a partner with you and co-invest for supply chain, for hub inventory management so that once we come out of this later this year, both parties are able to help each other and benefit from these secular trends?
Steve Kelley -- President and Chief Executive Officer
Yeah. Mehdi, I think really it's not a question of money. We have the ability to expand our own capacity relatively quickly and at relatively low cost. The issue is getting the part.
So it's really our suppliers expanding their capacity and their ability specifically to build more product at older nodes. So almost everything we buy is 28 nanometers to 180-nanometer type product. So it's mature. And it's been in contention this year as the automotive industry came back to life and basically economies boomed around the world.
So we're all fighting for that limited capacity. So what's happening today is we're seeing the IDMs make more investments in older nodes. And we're also seeing the same things happening at the foundries. So it takes some time to bring the capacity down, but it will come.
And I think over the next six to 12 months, we're going to see things settle down.
Mehdi Hosseini -- Susquehanna International Group -- Analyst
Thank you, Steve.
Steve Kelley -- President and Chief Executive Officer
You're welcome.
Operator 
Our next question comes from the line of Tom Diffely with D.A. Davidson. Please proceed with your question.
Tom Diffely -- D.A. Davidson -- Analyst
Yes. Thank you for the questions. Steve, just following up on Mehdi's question. So they think the OEMs will require you to hold a larger inventory going forward or maybe have a larger hub inventory going forward?
Steve Kelley -- President and Chief Executive Officer
Well, yeah, I think that two things will happen. One is our OEM customers will rebuild their safety stocks, and they may adjust those stocks a little bit depending on their risk tolerance. So that's probably going to be good news for us. The second is we're examining our own supply chain.
And where we can, we're going to build inventory where we identify weak links. And we're also going to upgrade. So in many cases, we're buying parts that are built in factories that may not have a long-term expansion plans. And so at that point, it's up to our engineers to upgrade the technology so that we're using parts that will be available and plentiful for many years to come.
So those two actions will be proceeding this year.
Tom Diffely -- D.A. Davidson -- Analyst
OK. Great. And maybe just a little bit more color on the supply dynamics. When you get a slug of product like you did in the fourth quarter, is that driven by your core suppliers just giving you more allocation? Are they actually producing more? Are you finding new suppliers or possibly even buy markets?
Steve Kelley -- President and Chief Executive Officer
Well, in this case, there was a couple of our core suppliers who allocated more to us. And there's a lot going on behind the curtain, quite frankly