New Delhi, 17 November (NNS): Due to the sluggish buying from the stockists even after the improved prices, due to this, black pepper prices remained stable at Rs 735 per kg. Recently, the prices have improved by Rs 5 per kg. The arrivals reported to be negligible and he prices gained by Rs 5/10 per kg in Kochi. The market sentiments may affect owing to the imported stock from Brazil. The spot black pepper prices will likely to remain strong during the coming days.