While there are a lot of concerns about global growth, at least one sector is strangely unwilling to raise the white flag and surrender. Global construction and mining equipment companies look like they are still doing all right. A bellwether in the space -- Joy Global ( JOYG , quote ) -- is even beating consensus estimates by a wide margin, not to mention raising its guidance for the rest of the year. JOYG revenue expanded by 19% last quarter on a year-over-year basis while earnings came in a full 12% above what Wall Street had been looking for: Going forward, JOYG bumped up its full-year revenue forecast by $100 million based on the strength of the previous quarter. This puts consensus estimates at the low end of the range, so look for at least one revision in the near future. On the earnings front, interestingly, analysts were already expecting JOYG to earn a penny a share more than even management's most optimistic guidance. While JOYG also raised its internal earnings targets by 20 cents per share, the math here works out to slightly weaker margins -- possibly due to rising input costs. In any event, you are not hearing anyone in this space -- from Deere ( DE , quote ) to Caterpillar ( CAT , quote ) to Kubota ( KUB , quote ) worrying about global growth. Be careful, but go ahead and pick your spots in these names. Where JOYG is concerned, the United States is still half of the business -- but Asia and Australia are becoming more important markets here all the time.