Assessment of Total Quality Management Practices in Manufacturing Companies in Kaduna State

Total quality management adoption in Nigerian manufacturing industries is uneven, and examining its practices and outcomes in Kaduna State, North West Nigeria, provides relevant evidence for the industrial sector. This study assessed total quality management practices in 20 manufacturing companies in Kaduna's Sabo Tasha and Kakuri industrial areas across five TQM dimensions: customer focus, continuous improvement, process management, employee involvement, and top management commitment. Data were collected from 200 production and quality managers using structured questionnaires. TQM implementation levels were computed using a 5-point Likert scale, and correlations with product quality indicators (defect rates, customer complaint rates, and production efficiency) were analysed. Results showed that top management commitment (mean: 3.8 out of 5) and customer focus (mean: 3.6) were the most consistently practised TQM dimensions. Continuous improvement and employee involvement were weakest (means: 2.9 and 2.7 respectively). Companies with above-average overall TQM scores showed 34% lower product defect rates and 28% fewer customer complaints than low-scoring companies. ISO 9001 certification was positively correlated with higher TQM scores (r = 0.58, p < 0.01). The study concludes that TQM practices in Kaduna manufacturing are unevenly applied, with the weakest performance in employee involvement and continuous improvement. Recommendations include structured quality circles and Kaizen workshops for production staff, supported by the Standards Organisation of Nigeria's TQM advisory programme for manufacturers. Keywords: total quality management, manufacturing, product quality, Kaduna State, ISO 9001