DigiTimes is reporting that sources at upstream component makers have said Apple’s popular iPhone 4 and iPad 2 products could be facing a shortage of materials as well as labor at Foxconn plants in China for the second quarter.

Commenting on the rumor, Foxconn only emphasized that the company’s capacity is being arranged fully at the request of its clients and the company will do all it can to satisfy its clients’ needs; however, the company declined to comment whether the labor shortages will cause delays in shipments. Foxconn emphasized that it has experience arranging manpower to assist its clients in reaching their goals.

Apple has been pushing its component suppliers and manufacturers to increase production to between 2.5 and 3 million iPad 2 units per month, though it’s being reported that in addition to Foxconn labor issues, supplies shortages from Japan are still seriously impacting Apple. It looks like Apple really was right when it said it was manufacturing iPad 2s as fast as it could.