500 tonnes per annum 490·25 fee units or more, but less than 910·25 fee units 5000 tonnes; 1820·5 fee units 5000 tonnes per annum or more but less than 20 000 tonnes; 20 000 tonnes per annum or more 32. I02 (Metal Metal melting works melting) being works in which metal melting is performed in furnaces having a total design rate of at least 10 tonnes per hour for ferrous foundries or 2 tonnes per hour for non-ferrous foundries, with a design production rate of— 1000 tonnes per annum 297·5 fee units or more, but less than 490·25 fee units 20 000 tonnes; 910·25 fee units 20 000 tonnes per annum or more but less than 100 000 tonnes; 100 000 tonnes per annum or more 33. I03 (Metal Metal galvanising works 297·5 fee units galvanising) which are designed to have a throughput of at least 5000 tonnes per year of steel
500 tonnes per annum or more, but less than 5000 tonnes; 5000 tonnes per annum or more but less than 20 000 tonnes; 20 000 tonnes per annum or more 490·25 fee units 910·25 fee units 1820·5 fee units 32. I02 (Metal melting) Metal melting works being works in which metal melting is performed in furnaces having a total design rate of at least 10 tonnes per hour for ferrous foundries or 2 tonnes per hour for non-ferrous foundries, with a design production rate of— 1000 tonnes per annum or more, but less than 20 000 tonnes; 20 000 tonnes per annum or more but less than 100 000 tonnes; 100 000 tonnes per annum or more 297·5 fee units 490·25 fee units 910·25 fee units 33. I03 (Metal galvanising) Metal galvanising works which are designed to have a throughput of at least 5000 tonnes per year of steel 297·5 fee units