import matplotlib.pyplot as plt

def generate_stock_chart(df):
    df = df.sort_values(by="Stock")
    plt.figure(figsize=(10, 6))
    plt.barh(df["Product"], df["Stock"], color='skyblue')
    plt.xlabel("Stock Quantity")
    plt.title("Inventory Stock Distribution")
    plt.tight_layout()
    path = "/mnt/data/stock_chart.png"
    plt.savefig(path)
    return path