"In 2017, the majority of violations found were related to improper provision of wages and benefits and working hours violations", said Apple in its report.
The company conducted 756 supplier assessments in 30 countries, 197 of which were visited for the first time in 2017.
Once these cases are discovered, the company notifies the CEO of the supplier and puts the supplier on a probation.
Aside from core violations Apple said that the overall trend was towards higher compliance.
Apple said in the report that the proportion of "low performers", or suppliers scoring less than 59 points on its 100-point scale, fell to 1 per cent in 2017 from 3 per cent in 2016 and 14 per cent in 2014.
The number of violations is double that detailed in its previous supplier report, which Apple attitude to a rise in standards of its labour and humans rights performance a year ago, with the number of suppliers assessed as high-performing increasing by 35 per cent. The compliance for working hours across all suppliers in 2017 was 94 per cent, Apple said.
Apple also said it clamped down on all suppliers responsible for its core violations. Further reviews are also carried out to prevent the reoccurrence of the issue. The Californian-based tech giant now tracks the work data of 1.3 million suppler employees, a notable 30% more than in previous years. Both were taken home and enrolled in their school of school, while still receiving payment from their facility. Apple's policy requires that its suppliers do not charge fees of this kind in any amount. The company aims to reach 1 million women at its supplies around the world by 2020. It said it had launched a program in China to train workers to become factory line leaders, who often make 20 per cent to 30 per cent more than line workers.
On Wednesday, Apple also issued its conflict minerals report, which is required by U.S. securities regulators.
Labor and human rights violations in Apple's global supply chain have doubled in the span of a year, a new report has revealed.
100pc of identified smelters and refiners in the company supply chain were happy to participate in a third-party conflict mineral audit, the company's third annual examination of the issue.