Development Partnership with LG Chem Life Sciences

10 December 2018

Avacta Group plc

("Avacta" or "the Group" or "the Company")

Major multi-target Affimer® therapeutics development alliance with LG Chem Life Sciences

Up to $180 million in upfront, near term payments and development milestones

Avacta Group plc (AIM: AVCT), the developer of Affimer^® biotherapeutics and reagents, is pleased to announce that it has agreed an Affimer^® therapeutics development partnership and license agreement with LG Chem Life Sciences (LG Chem), part of the South Korean LG Group, to develop Affimer^® therapeutics in several disease areas.

This multi-target therapeutics development agreement provides for upfront and near-term milestone payments, plus longer-term clinical development milestones totalling $180 million. Avacta will also receive royalties on any future product sales and LG Chem will cover Avacta's costs of research and development associated with the collaboration. Avacta may receive an additional $130 million in option fees and milestone payments should LG elect to exercise their options for additional targets.

Avacta will generate and carry out early-stage optimisation of Affimer^® drug candidates against multiple undisclosed targets. LG Chem and Avacta will collaborate to progress these candidates through to drug candidate selection, and LG Chem will be responsible for pre-clinical and regulatory studies, clinical development and world-wide marketing of any resulting products.

The Affimer^® technology is Avacta's proprietary alternative to antibodies with wide applications in the life sciences for drug development, diagnostics and research tools.  Avacta's in-house therapeutic pipeline is focused on immuno-oncology and the Group expects to advance its lead programme, a PD-L1/LAG3 bispecific, into the clinic in 2020 whilst building out its pipeline of innovative Affimer^® drug candidates.

Alastair Smith, Chief Executive of Avacta Group commented:

"I am delighted to be entering into this therapeutic development partnership with LG Chem which is a strong validation of the potential of the Affimer^® platform.

"This alliance is an exciting opportunity, not only to work with a partner who has first class biologics manufacturing and clinical development capabilities, but who also has a pioneering vision to develop innovative therapies.

"This landmark agreement with LG Chem reflects the substantial progress that we have made in developing the Affimer^® technology as a therapeutic platform and I look forward to updating the market on future progress and other partnerships."

Dr. Jeewoong Son, President of LG Chem Life Sciences commented:

"We are very pleased to announce collaboration with Avacta Group. Utilizing Avacta's Affimer^® technology - a novel non-antibody protein format overcoming limitations of classical antibody-based therapy - and LG Chem's biologics capability in development and manufacturing, it will take us to the next level of treatment paradigm and to open up a new horizon in biologics therapeutic strategies. I believe, this innovative collaboration will deliver value to patients and will transform patients' lives."

For further information from Avacta Group plc, please contact:

About Avacta Group plc (www.avacta.com)

Avacta's principal focus is on its proprietary Affimer^® technology which is a novel engineered alternative to antibodies that has wide application in Life Sciences for diagnostics, therapeutics and general research and development.

Antibodies dominate markets worth in excess of $100bn despite their shortcomings. Affimer^® technology has been designed to address many of these negative performance issues, principally; the time taken to generate new antibodies, the reliance on an animal's immune response, poor specificity in many cases, and batch to batch variability.  Affimer^® technology is based on a small protein that can be quickly generated to bind with high specificity and affinity to a wide range of protein targets.

Avacta has a pre-clinical biotech development programme with an in-house focus on immuno-oncology as well as partnered development programmes. Avacta is commercialising non-therapeutic Affimer^® reagents through licensing to developers of life sciences research tools and diagnostics.

About LG Chem

LG Chem Life Sciences is a business division within LG Chem, engaged in the development, manufacturing, as well as commercializing pharmaceutical products globally. LG Chem Life Sciences seeks to expand and make global presence by focusing on key core therapeutic areas of Immunology, Oncology, and Metabolic Diseases (specifically, diabetes and related metabolic diseases). To achieve such, its strategy is to actively pursue global collaboration encompassing from asset-centric to strategic investment and collaboration.