Holding(s) in Company

TR-1: Standard form for notification of major holdings

1. Issuer Details
ISIN
GB00BLDRH360
Issuer Name
OSB GROUP PLC
UK or Non-UK Issuer
UK
2. Reason for Notification
An acquisition or disposal of voting rights
3. Details of person subject to the notification obligation
Name
Jupiter Fund Management PLC
City of registered office (if applicable)
London
Country of registered office (if applicable)
United Kingdom
4. Details of the shareholder

Name	City of registered office	Country of registered office
Citigroup
Northern Trust

5. Date on which the threshold was crossed or reached
03-Jun-2021
6. Date on which Issuer notified
04-Jun-2021
7. Total positions of person(s) subject to the notification obligation

.	% of voting rights attached to shares (total of 8.A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)	Total of both in % (8.A + 8.B)	Total number of voting rights held in issuer
Resulting situation on the date on which threshold was crossed or reached	13.970000	0.030000	14.000000	62831581
Position of previous notification (if applicable)	14.880000	0.030000	14.910000

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached
8A. Voting rights attached to shares

Class/Type of shares ISIN code(if possible)	Number of direct voting rights (DTR5.1)	Number of indirect voting rights (DTR5.2.1)	% of direct voting rights (DTR5.1)	% of indirect voting rights (DTR5.2.1)
GB00BLDRH360		62684480		13.970000
Sub Total 8.A	62684480		13.970000%

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

Type of financial instrument	Expiration date	Exercise/conversion period	Number of voting rights that may be acquired if the instrument is exercised/converted	% of voting rights
Sub Total 8.B1

8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))

Type of financial instrument	Expiration date	Exercise/conversion period	Physical or cash settlement	Number of voting rights	% of voting rights
CFD			Cash	147101	0.030000
Sub Total 8.B2				147101	0.030000%

9. Information in relation to the person subject to the notification obligation
2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)

Ultimate controlling person	Name of controlled undertaking	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
Jupiter Fund Management Plc (Chain 1)		0.000000	0.000000	0.000000
	Jupiter Fund Management Group Limited	0.000000	0.000000	0.000000
	Jupiter Asset Management Group Limited	0.000000	0.000000	0.000000
	Knightsbridge Asset Management Limited	0.000000	0.000000	0.000000
	Jupiter Investment Management Group Limited	0.000000	0.000000	0.000000
	Jupiter Asset Management Limited	0.310000	0.000000	0.310000
Jupiter Fund Management Plc (Chain 2)		0.000000	0.000000	0.000000
	Merian Global Investors Limited	0.000000	0.000000	0.000000
	Merian Global Investors (Jersey) Limited	0.000000	0.000000	0.000000
	Merian Global Investors (Finance) Limited	0.000000	0.000000	0.000000
	Merian Global Investors Holdings Limited	0.000000	0.000000	0.000000
	Jupiter Investment Management Limited	13.660000	0.030000	13.690000

10. In case of proxy voting
Name of the proxy holder

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional Information

12. Date of Completion
4^th June 2021
13. Place Of Completion
London, UK