What is the company's view on the relative headwinds associated with the three major cost components, inflationary cost of materials, labor and freight, and how has this view evolved over the last three months? 
are these growth investments mainly a 2022 phenomenon? Or would you expect them to -- I mean, I guess, outside of the U.S.
semiconductor capacity expansion, I mean, would you expect some of the growth investments this year in Advanced Surface Technologies to continue into next year?
Milt Childress -- Executive Vice President and Chief Financial Officer
Well, you hit the big one. The big one that we're expecting is the -- what's happening in the U.S. in the semiconductor industry. So if you exclude that, then the way I would describe it is we'll always be investing in growth ahead of the growth.
So there's always going to be some element of that. It just happens to be a little bit more significant, given where we are currently in this segment. So I think that's the way I would describe it.
Justin Bergner -- Gabelli and Company -- Analyst
OK. Great. That's helpful. And switching back to costs, how would you describe where we stand today, the relative headwinds associated with the three major cost components, inflationary cost of materials, labor and freight? And how is that view of those different headwinds maybe evolved over the last three months?
Milt Childress -- Executive Vice President and Chief Financial Officer
Well, I'll just add context, and then I'll invite Eric to jump in. And I'm going to give you a little walk through from where we were last year. Last year, we had really good experience more than covering cost increases during the first half of the year. And then in Q3, we still were fine.
Q4, we were -- it became a little bit more challenging. And then I would say, in this quarter, the challenge was more significant overall because we're seeing not only material cost increase, but we're seeing the effects of wage increases and continued freight increases. And now with what's going on in China and the ports being locked up and what's happening in Ukraine, we think it's likely that those pressures will continue to affect the economy, which is one of the reasons why we have not adjusted guidance, as I mentioned earlier. So that's kind of a little bit of a look back at last year and then the trends this year.
Eric Vaillancourt -- President and Chief Executive Officer
Yes. So if you think about it this way, we implemented price increases in January 1 in the heavy-duty truck market. We did it again in March, and we have another one announced for June 1st, and the rest of our business is July 1st. So I think we've caught up in general, other than the heavy-duty truck market.
And I think we're caught up now as long as things don't go crazy again in the next quarter. The other thing that's happening, and it's a smaller effect, is just a little bit more inefficiency. And it's really just due to supply chain. When things aren't available, you're not as efficient as you were before.
So you're really moving around the plant more often and able to have the lines -- larger runs or things like that. So there's a little bit of inefficiency that's piled in there. It's not price. We're trying to capture that.
As supply chain improves, that will improve as well.
Justin Bergner -- Gabelli and Company -- Analyst
Great. That's very helpful color. One last question. You called out corporate expense being up, and I wasn't sure if you were trying to suggest this is sort of a new higher run rate or that you're trying to suggest it's not a new higher run rate.
And then in the description, you mentioned acquisition divestiture expenses and restructuring expenses, but I thought that's not part of corporate in your adjusted EBITDA calculation. So just any clarity there?
Milt Childress -- Executive Vice President and Chief Financial Officer
Yes. I'll take the last question first because it's a good question and can create some confusion. So corporate expenses, when we report the GAAP -- the total number, and it is correct that the M&A portion that goes into corporate expenses that resulted in some increase year over year is adjusted out for adjusted EBITDA. But when we talk about corporate expenses, we're talking about all expenses.
And so
are these growth investments mainly a 2022 phenomenon? Or would you expect them to -- I mean, I guess, outside of the U.S.
semiconductor capacity expansion, I mean, would you expect some of the growth investments this year in Advanced Surface Technologies to continue into next year?
Milt Childress -- Executive Vice President and Chief Financial Officer
Well, you hit the big one. The big one that we're expecting is the -- what's happening in the U.S. in the semiconductor industry. So if you exclude that, then the way I would describe it is we'll always be investing in growth ahead of the growth.
So there's always going to be some element of that. It just happens to be a little bit more significant, given where we are currently in this segment. So I think that's the way I would describe it.
Justin Bergner -- Gabelli and Company -- Analyst
OK. Great. That's helpful. And switching back to costs, how would you describe where we stand today, the relative headwinds associated with the three major cost components, inflationary cost of materials, labor and freight? And how is that view of those different headwinds maybe evolved over the last three months?
Milt Childress -- Executive Vice President and Chief Financial Officer
Well, I'll just add context, and then I'll invite Eric to jump in. And I'm going to give you a little walk through from where we were last year. Last year, we had really good experience more than covering cost increases during the first half of the year. And then in Q3, we still were fine.
Q4, we were -- it became a little bit more challenging. And then I would say, in this quarter, the challenge was more significant overall because we're seeing not only material cost increase, but we're seeing the effects of wage increases and continued freight increases. And now with what's going on in China and the ports being locked up and what's happening in Ukraine, we think it's likely that those pressures will continue to affect the economy, which is one of the reasons why we have not adjusted guidance, as I mentioned earlier. So that's kind of a little bit of a look back at last year and then the trends this year.
Eric Vaillancourt -- President and Chief Executive Officer
 Yes. So if you think about it this way, we implemented price increases in January 1 in the heavy-duty truck market. We did it again in March, and we have another one announced for June 1st, and the rest of our business is July 1st. So I think we've caught up in general, other than the heavy-duty truck market.
And I think we're caught up now as long as things don't go crazy again in the next quarter. The other thing that's happening, and it's a smaller effect, is just a little bit more inefficiency. And it's really just due to supply chain. When things aren't available, you're not as efficient as you were before.
So you're really moving around the plant more often and able to have the lines -- larger runs or things like that. So there's a little bit of inefficiency that's piled in there. It's not price. We're trying to capture that.
As supply chain improves, that will improve as well.
Justin Bergner -- Gabelli and Company -- Analyst
Great. That's very helpful color. One last question. You called out corporate expense being up, and I wasn't sure if you were trying to suggest this is sort of a new higher run rate or that you're trying to suggest it's not a new higher run rate.
And then in the description, you mentioned acquisition divestiture expenses and restructuring expenses, but I thought that's not part of corporate in your adjusted EBITDA calculation. So just any clarity there?
Milt Childress -- Executive Vice President and Chief Financial Officer
Yes. I'll take the last question first because it's a good question and can create some confusion. So corporate expenses, when we report the GAAP -- the total number, and it is correct that the M&A portion that goes into corporate expenses that resulted in some increase year over year is adjusted out for adjusted EBITDA. But when we talk about corporate expenses, we're talking about all expenses.
And so