Apple today has released its 12th annual Supplier Responsibility Progress Report, detailing the work the company is doing in improving conditions at supplier facilities. Apple touts that 15 million supplier employees have now been trained on their rights, including 3 million just last year.

The report, however, also offers color on some of the issues Apple still faces in its supply chain…

Apple audited 756 suppliers in 30 countries as part of its progress report, with 197 of those suppliers being brand new and audited for the first time. The company says that the number of “low performers” fell to 1 percent this year, down from 3 percent in 2016 and 14 percent in 2014.

Apple explains its scoring methodology:

In terms of violations, Apple said that it found 44 “core violations” of labor rules, which is more than double the number it reported last year. Apple says these violations included 3 debt-bonded labor violations, 38 cases of working hour falsifications, 1 access restriction violation, and 2 underage labor violations.

In one case of debt-bonded labor, Apple says 700 contracted workers from the Philippines were charged $1 million to work for a supplier. Apple forced the supplier to pay that money back to the workers:

As for those working hour falsification cases, 94 percent of suppliers reported compliance with Apple’s 60-hour work week requirement, down from 98 percent last year.

In one case, over 700 foreign contract workers were recruited from the Philippines to work for a supplier through a private employment agency. This resulted in excessive placement fees of more than US$1M.

For its part, Apple largely attributes the spike in violations to the addition of so many new suppliers, which is certainly a viable excuse.

Apple’s Supplier Responsibility Progress Report also highlights the efforts the company is taking in protecting supplier employees. For instance, Apple COO Jeff Williams touts a new program that encourages women workers to focus on personal health:

Apple also touts its Factory Line Leader Program that opens the door to full-time employment opportunities with vocational skills:

Reuters also notes that Apple released its conflict minerals report today, required by U.S. security regulators:

You can read Apple’s full Supplier Responsibility Progress Report right here.

Apple also outlined new rules on student labor after a discovery last year that some Chinese students were working more than 11 hours a day assembling its iPhone X.