This section applies to any person who—
and in this subsection "successor company" has the same meaning as in Part II.
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Chapter I of Part XIV of the Employment Rights Act 1996 (computation of period of employment) shall have effect in relation to a person to whom this section applies as if it included the following provisions, that is to say—
Where this section applies to a person, the period of his employment with his former employer shall count as a period of employment with his new employer for the purposes of any provision of his contract of employment with his new employer which depends on his length of service with that employer.