Special Melted Products Limited

Active01919677 Private limited company
Incorporated
5 June 1985 (41 years)
Previously known as
Allegheny Technologies Limited (until 12 May 2022)
Ati Specialty Materials Limited (until 5 December 2018)
Ati Allvac Limited (until 25 March 2015)
Earlier: Allvac Ltd, Allvac-Smp Limited, Special Melted Products Limited, B & N (No.139) Limited
Industry
Other non-ferrous metal production (24450)
Directors
Yu-Lon Chiao
Hsin-Yi Ho
Kunying Liang
Owned by
Walsin Lihwa Corp
Accounts type
Full
Region
Yorkshire
Address
President Way Works
President Way
Sheffield
S4 7UR

Filing status

Accounts due
30 September 2027
Last accounts
31 December 2025
Conf. stmt due
25 September 2027
Last conf. stmt
11 September 2026

Charges

Total
16
Outstanding
5
Part satisfied
0
Satisfied
11

Officers 6 active

Officer details are public data from the Companies House register.

Chiao, Yu-Lon
Director · Appointed 25 June 2026
American
Born July 1958 (68)
Ho, Hsin-Yi
Director · Appointed 25 June 2026
Taiwanese
Born February 1976 (50)
Liang, Kunying
Director · Appointed 25 June 2026
American
Born September 1976 (50)
Corporate Secretary · Appointed 30 July 2024
Also at Graftech UK Limited, Murphy Comhire Limited, Hart, Moss, Copley & Co. Limited · more companies
Burelli, Massimiliano
Director · Appointed 19 September 2023
Italian
Born August 1970 (56)
Richardson, Kenneth Andrew
Director · Appointed 12 May 2022
British
Born September 1972 (54)
Officer history (45 former)
25 June 2026
Appointed Ho, Hsin-Yi as Director
25 June 2026
Appointed Liang, Kunying as Director
25 June 2026
Resigned Pirovano, Monica as Director
25 June 2026
Appointed Chiao, Yu-Lon as Director
25 June 2026
Resigned Misul, Alessandro Gino as Director
26 November 2024
Resigned Pizzorno, Mariano Adrian as Director
26 November 2024
Appointed Misul, Alessandro Gino as Director
30 July 2024
Appointed H S Secretaries Limited as Corporate Secretary
5 April 2024
Resigned Brown, Victoria Mary as Secretary
5 April 2024
Resigned Brown, Victoria Mary as Director
16 January 2024
Appointed Pizzorno, Mariano Adrian as Director
15 January 2024
Resigned Hall, Stephen Darren as Director
19 September 2023
Appointed Hall, Stephen Darren as Director
19 September 2023
Appointed Pirovano, Monica as Director
19 September 2023
Appointed Burelli, Massimiliano as Director
19 September 2023
Resigned Cullis, Thomas as Director
6 March 2023
Appointed Brown, Victoria Mary as Secretary
6 March 2023
Resigned Cullis, Thomas as Secretary
6 March 2023
Appointed Brown, Victoria Mary as Director
9 August 2022
Resigned Chambers, Richard as Director
12 May 2022
Appointed Chambers, Richard as Director
12 May 2022
Resigned Broeker, Pamela Margaret as Director
12 May 2022
Appointed Cullis, Thomas as Director
12 May 2022
Resigned Davis, Elliot Staub as Director
12 May 2022
Resigned Davis, Elliot Staub as Secretary
12 May 2022
Resigned Keystone Law Limited as Corporate Secretary
12 May 2022
Appointed Richardson, Kenneth Andrew as Director
12 May 2022
Resigned Newman, Donald P. as Director
12 May 2022
Appointed Cullis, Thomas as Secretary
30 July 2020
Appointed Keystone Law Limited as Corporate Secretary
29 July 2020
Resigned Mwlaw Services Limited as Corporate Secretary
23 January 2020
Appointed Newman, Donald P. as Director
23 January 2020
Resigned Decourcy, Patrick as Director
9 January 2019
Appointed Broeker, Pamela Margaret as Director
21 August 2017
Appointed Mwlaw Services Limited as Corporate Secretary
21 August 2017
Resigned Gravitas Company Secretarial Services Limited as Corporate Secretary
14 August 2017
Resigned Witheford, Thomas John as Director
31 March 2016
Resigned Dalton, Hunter Russell as Director
31 March 2016
Appointed Witheford, Thomas John as Director
15 July 2013
Resigned Reid, Dale Gary as Director
15 July 2013
Appointed Decourcy, Patrick as Director
1 May 2011
Appointed Davis, Elliot Staub as Director
1 May 2011
Appointed Reid, Dale Gary as Director
1 May 2011
Resigned Walton, Jon David as Director
1 May 2011
Resigned Harshman, Richard Joseph as Director
20 October 2008
Appointed Davis, Elliot Staub as Secretary
1 April 2008
Appointed Dalton, Hunter Russell as Director
1 April 2008
Appointed Gravitas Company Secretarial Services Limited as Corporate Secretary
1 April 2008
Resigned Williams Jr, Thomas Earl as Director
1 April 2008
Resigned Dudill, Anthony Leonard as Secretary
16 October 2003
Appointed Harshman, Richard Joseph as Director
30 September 2003
Resigned Murdy, James as Director
15 November 2001
Resigned Thompson, Ronald David as Director
31 August 2000
Appointed Dudill, Anthony Leonard as Secretary
31 August 2000
Resigned Dodson, Darryl Ray as Secretary
7 February 2000
Appointed Thompson, Ronald David as Director
20 January 2000
Resigned Pridgeon, John Warren as Director
25 June 1999
Resigned Ashbaugh, Henry Snyder as Director
25 June 1999
Resigned Wright, Richard Kelsey as Director
25 June 1999
Appointed Walton, Jon David as Director
25 June 1999
Resigned Oakes, Graham as Director
25 June 1999
Resigned Andrews, John Van Ness as Director
25 June 1999
Resigned Timothy, Stephen Paul, Doctor as Director
25 June 1999
Appointed Williams Jr, Thomas Earl as Director
25 June 1999
Appointed Murdy, James as Director
25 June 1999
Resigned Bonime, Jonathan David as Director
25 June 1999
Resigned Marshall, Simon Gerald Scott as Director
25 June 1999
Resigned Harshman, Richard Joseph as Director
9 April 1998
Appointed Dodson, Darryl Ray as Secretary
9 April 1998
Resigned Bell, John Clive as Director
9 April 1998
Resigned Bell, John Clive as Secretary
6 April 1998
Resigned Gerrard, John Charles as Director
6 February 1998
Resigned Brand, Malcolm Arthur as Director
6 February 1998
Appointed Andrews, John Van Ness as Director
6 February 1998
Appointed Harshman, Richard Joseph as Director
6 February 1998
Appointed Pridgeon, John Warren as Director
6 February 1998
Appointed Ashbaugh, Henry Snyder as Director
6 February 1998
Appointed Bonime, Jonathan David as Director
6 February 1998
Resigned Beresford, John Haydn as Director
6 February 1998
Appointed Marshall, Simon Gerald Scott as Director
31 December 1997
Resigned Wright, Phillip Montague as Director
30 September 1997
Resigned Kavanagh, Desmond John as Director
30 June 1997
Appointed Beresford, John Haydn as Director
29 June 1997
Resigned Lomax, Keith Barrie as Director
1 January 1997
Appointed Lomax, Keith Barrie as Director
31 December 1996
Resigned Marrison, Terence as Director
1 August 1996
Appointed Timothy, Stephen Paul, Doctor as Director
1 February 1992
Appointed Wright, Richard Kelsey as Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Walsin Lihwa Corp
Corporate entity · Notified 19 September 2023
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Company Limited By Shares
Reg. no. 35412204
Former controllers (3)
19 September 2023
Ceased Mutares SE & Co Kgaa — Owns 75–100% of shares
12 May 2022
Ceased Tdy Holdings Limited — Owns 75–100% of shares
7 December 2018
Ceased Tdy Limited — Owns 75–100% of shares

Group structure 3 companies

Ownership group derived from the Companies House PSC register

Special Melted Products Limited This company
Advanced Manufacturing Holdings Limited Owns 25–50% of shares
Advanced Manufacturing (Sheffield) Limited Owns 75–100% of shares

Filings

Recent filings only. See the full history on Companies House

DateDescriptionMade Up ToPagesPDF
11 September 2026Confirmation statement with no updates11 September 2026
25 June 2026Termination of appointment of a director1
25 June 2026Appointment of a director2
25 June 2026Appointment of a director2
25 June 2026Appointment of a director2
Show all recent filings

Other companies in this industry

Exeter
Ellesmere Port
Sheffield
Grangemouth
Leicester
Peckham

By trade and location

New companies in Sheffield →

Explore the largest companies

Largest companies in Sheffield, UK →

Need accounts figures, ownership or websites for thousands of companies? Bulk data & API →

← Back to companies Official record on Companies House ↗

Already have an account?

Create your account

Save searches and get the weekly email of new matches.

First name is required.
Last name is required.
Enter an email address like name@example.com.
Must be at least 8 characters. Password must be at least 8 characters.

Already have an account?