SELECT 
  cscart_ult_product_prices.product_id, 
  MIN(
    IF(
      cscart_ult_product_prices.percentage_discount = 0, 
      cscart_ult_product_prices.price, 
      cscart_ult_product_prices.price - (
        cscart_ult_product_prices.price * cscart_ult_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_ult_product_prices 
WHERE 
  cscart_ult_product_prices.product_id IN (
    1858, 1859, 1860, 1861, 1862, 1863, 1864, 
    1865, 1866, 1867, 1868, 1869, 1870, 
    1871, 1872, 1874, 1875, 1876, 1877, 
    3748, 3749, 3750, 3751, 5505, 5506, 
    5507, 5508, 5509, 5510, 5511, 5512, 
    5513, 5514, 5515, 5516, 5517, 5518, 
    5519, 5520, 5521, 5522, 5523, 5524, 
    5525, 5526, 5527, 5528, 5529
  ) 
  AND cscart_ult_product_prices.lower_limit = 1 
  AND cscart_ult_product_prices.company_id = 1 
  AND cscart_ult_product_prices.usergroup_id IN (0, 0, 1) 
GROUP BY 
  cscart_ult_product_prices.product_id

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}