Use of Non GAAP Measures Page 3 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Strategy and Execution Drive Results Page 4 All time closing high of $29.48 August 1, 2013 • 15 consecutive quarters of double digit EPS growth • 42% CAGR adjusted EPS expansion 2006-2012 • YTD stock price has increased 42% versus 20% growth in the S&P • 275% increase in market cap: $0.7b $2.6b since 2006 The World’s Premier Provider of Specialized Polymer Materials, Services & Solutions Four Pillar Strategy Page 5 PP&S 15% Specialty Distribution 25% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010* 2011* 2012* 2015 Target Ad ju st ed E ar ni ng s P er S ha re Appliance 6% Building & Construction 13% Wire & Cable Electrical & Electronics 4% Consumer Packaging 18% Industrial 10% Misc. 5% HealthCare Transportation 16% Textiles 1% United States 70% Europe 14% Canada 8% Asia 5% Latin America 3% 2012 Revenues: $4.0 Billion* End Markets* 2012 Revenues: $4.0 Billion* EPS Page 6 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms & excludes discontinued operations PolyOne At A Glance * Restated to exclude discontinued operations Old PolyOne Transformation *Operating Income excludes corporate charges and special items **Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and excludes discontinued operations 2% 34% 43% 45% 60% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2012 2012 PF** 2015 % o f O pe ra tin g In co m e* JV's PP&S Distribution Specialty Specialty OI $5M $46M $87M $114M $150M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 H1 2013 2015 Where we were Where we are Organic Consolidated Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.7% 12.6% 12 – 16% Global Specialty Engineered Materials 1.1% 10.9% 9.2% 12 – 16% Designed Structures & Solutions — — 4.4% 8 – 10% Performance Products & Solutions 5.4% 8.1% 8.2% 9 – 12% Distribution 2.6% 6.1% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 62% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 26% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 8 *Percentage of Specialty Platform revenue from products introduced in last five years 19.5% 46.5% 2006 Q2 2013 $20.3 $44.7 2006 TTM Q2'13 14.3% 31.1% 2006 Q2 2013 Research & Development Spending Specialty Platform Vitality Index Progression* Innovation Drives Earnings Growth ($ millions) Specialty Platform Gross Margin % Page 9 We are Experts in Polymer Science and Formulation  Polymer Science  Formulation  Chemistry  Processing Inputs  Base Resins  Additives  Modifiers  Colorants Specialized Polymer Materials, Services, and Solutions Expertise Satisfied Consumers PolyOne Customer Innovative Products & Services  Marketplace Demands  Performance Requirements  Value Drivers Page 10 Positioned for Strong Growth 2015 Target Rev: $5B Adj.

Use of Non-GAAP Measures Page 3 PolyOne Commodity to Specialty Transformation Page 4 • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth • 17 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Steve Newlin Appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2013 2014 and beyond -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Russell 2000 Dow Jones Chemical All time high of $38.38 March 7th, 2014 • 17 consecutive quarters of double digit EPS growth • 49% CAGR adjusted EPS expansion 2006-2013 • 2013 stock price increased 73% versus 30% growth in the S&P • More than seven fold increase in market cap: $0.5b $3.6b Strategy and Execution Drive Results Page 5 Appliance 4% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 5% Consumer 10%Packaging 16% Industrial 12% HealthCare 11% Transportation 18% Misc. 2% United States 66% Europe 14% Canada 7% Asia 6% Latin America 7% PP&S Specialty 53% Distribution 27% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 1.31 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010 2011 2012 2013 2015 Target Ad ju st ed E ar ni ng s P er S ha re 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion EPS Page 6 PolyOne At A Glance Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty Specialty OI $5M $46M $87M $195M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 2013 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.2% 12 – 16% Global Specialty Engineered Materials 1.1% 9.3% 12 – 16% Designed Structures & Solutions -- 5.6% 8 – 10% Performance Products & Solutions 5.4% 7.2% 9 – 12% Distribution 2.6% 5.9% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 62% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.1% 15% 4) Adjusted EPS Growth N/A 31% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 8 Bridge To $2.50 Adjusted EPS By 2015 2015 EPS: $2.50 2013 EPS: $1.31 Mid single digit revenue CAGR Page 9 Mergers & Acquisitions Spartech accretion Incremental share buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Innovation Drives Earnings Growth $20.3 $52.3 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* *Percentage of Specialty Platform revenue from products introduced in last five years Page 10 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Healthcare Consumer Packaging and Additive Technology Transportation Page 11 Unique and Innovative Solutions that Help Customers Win https://www.dropbox.com/sh/dwe4t8aacvhb8ui/uD3p_bdglP/Presentation revise pics/GLS Beverage can closure XO 2.jpg https://www.dropbox.com/sh/dwe4t8aacvhb8ui/-YgkycKypw/Anti-Counterfeiting release & images/GN1979.JPG Net Debt / EBITDA* = 1.8x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Significant Debt Maturities As of December 31, 2013 ($ millions) Page 12 Coupon Rates: 7.500% 7.375% 5.250% Debt Maturities & Pension Funding – 12/31/13 *TTM 12/31/2013 ** includes US-qualified plans only 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2013 Pension Funding** As of December 31, 2013 Free Cash Flow and Strong Balance Sheet Fund Investment •Targets that expand our: • Specialty offerings •End market presence •Geographic footprint •Operating Margin • Synergy opportunities •Adjacent material solutions •Expanding our sales, marketing, and technical capabilities • Investing in operational and LSS initiatives (including synergy capture) •Manufacturing alignment Organic Growth Share Repurchases Dividends Acquisitions Page 13 $0.16 $0.20 $0.24 $0.32 $0.00 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend • Repurchased ~5 million shares in 2013 • 15 million shares are available for repurchase under the current authorization The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Why Invest In PolyOne? Strong past performance demonstrates that our strategy and execution are working • Megatrends align with our strengths • Innovation and services provide differentiation, incremental pricing power, and competitive advantage • Strong and proven management team driving growth and performance • Addressable market exceeds $40 billion Page 14 1 Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S. Gabelli Non-GAAP.pdf Section 1

Azon joghatóság helyi Avient szervezete, ahová Ön jelentkezik, az Ön személyes adatainak adatkezelője lesz. 1. Kapcsolatfelvétel Amennyiben bármilyen kérdése van vagy szeretne élni a jogaival, vegye fel velünk a kapcsolatot az alábbi elérhetőségen keresztül: Vállalati adatvédelmi tisztviselő Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 E-mail-cím: PRIVACY.OFFICER@AVIENT.COM Telefonszám: 1-800-901-2078 Az adatvédelemmel kapcsolatos kérdéseit, illetve kérelmeit online űrlapunkon keresztül is elküldheti nekünk. Hatályba lépés napja: 2020. augusztus 1.

The local Avient entity of the jurisdiction for which you are applying for a position will act as a data controller with respect to your personal information. 1. Contact Us If you have any questions or want to exercise any of your rights, you can contact us at: The Corporate Privacy Officer Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Email: PRIVACY.OFFICER@AVIENT.COM Phone: 1-800-901-2078 You may also send us your privacy questions or requests through our online form. Effective Date: August 1, 2020 mailto:PRIVACY.OFFICER@POLYONE.COM https://privacyportal.onetrust.com/webform/b25cf7b1-a93a-4d26-8c84-ceda4d0ae91b/e180cbe4-d1b9-49bd-b621-cb5f6a0f42cb mailto:PRIVACY.OFFICER@POLYONE.COM

Microsoft Word - Terms and Conditions for Canada (French)[2].doc CONDITIONS GÉNÉRALES Les conditions générales ci-dessous s’appliquent à la vente de tous les produits fabriqués par PolyOne. 1. Sauf dans la mesure où le produit vendu en vertu des présentes ne respecte pas les garanties expresses prévues au paragraphe 1, l’acheteur prendra fait et cause pour le vendeur et l’indemnisera pour tous les coûts, dépenses, dommages, jugements ou autre perte, y compris les frais de l’enquête et de litige et les honoraires d’avocats raisonnables, qui découlent du choix, de l’utilisation, de la vente et du complément de fabrication du produit vendu en vertu des présentes, par l’acheteur. 9. L’une ou l’autre des parties peut suspendre l’exécution des présentes (sauf pour payer le produit déjà reçu) dans les cas suivants: (1) actes de Dieu, incendie, explosion, inondation, ouragan; (2) grèves, lock-out ou autre perturbation industrielle ou émeute; (3) guerre, déclarée ou non déclarée; (4) observation des lois, règlements, arrêtés ou règles, pris à l’échelon fédéral, étatique, municipal ou local, étrangers ou nationaux, notamment les arrêtés ou règlements de priorité, de rationnement, de répartition ou de préemption, ou l’annulation du permis d’exploitation d’usine du vendeur ou de l’acheteur; (5) pénurie ou autre défaillance des installations utilisées pour la fabrication ou le transport, ou pénurie de main-d’œuvre, d’électricité, de combustibles ou de matières premières; (6) fermeture totale ou partielle du fait du redressement normal de l’usine du vendeur; ou (7) toute autre cause, de quelque nature ou type que ce soit, raisonnablement indépendante de la volonté de la partie défaillante, qu’elle soit semblable ou différente des causes énumérées (une « force majeure »).

A 78870 (“Seller”). 1. Department of the Treasury’s Office of Foreign Assets Control, the Act no. 38/1994 Coll., on international trade with military material, Act 594/2004 Coll., on execution of EC regime for control of export, transport, intermediation and transit of dual use goods, Act 69/2006 Coll., on execution of international sanctions, Act 1/2023 Coll., on sanctions as well as all directly applicable EU legislation (“Trade Control Laws”). Terms and Conditions (December 1, 2024)

KEY CHARACTERISTICS • Meets critical need for thermal weldability and kink resistance • Minimizes extractables during processing • Provides excellent tensile strength • Complies with USP VI and ISO 10993-4, -5, -11 certifications • Suitable for gamma and autoclave sterilization methods • Bio-based grade option formulated with nearly 40% Gen 1 biomass content PRODUCT OVERVIEW 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

POLYSTRAND CONTINUOUS FIBER REINFORCED THERMOPLASTIC TAPES & LAMINATES ™ PRODUCT SELECTION GUIDE Material Min Finished Slit Width Max Finished Slit Width Unidirectional Tape 2” (50.8 mm) 24” (610 mm) X-Ply™, 3-Ply, 4-Ply 2” (50.8 mm) 120” (3048 mm) SLITTING CAPABILITIES Max Unfinished Width Max Finished Slit Width Max Finished Roll Weight Max Roll Length (X-Ply™, Full Width) Up to 125" (3175 mm) Up to 120" (3048 mm) Up to 10,000 lbs (4500 kg) Up to 4,000 ft (1200 m) LAMINATION LINE CAPABILITIES Tape Width Resin Capabilities Fiber Inputs Max Tape Roll Weight Max Roll Length 25" (635 mm) Standard Width, Slit Capabilities PP, PE, PETG, aPET, PA6 Additional polymers in development E-Glass S-Glass, Aramid Up to 1,800 lbs (816 kg) Up to 12,000 ft (366 m) TAPE LINE CAPABILITIES Product Name Resin Fiber Content Areal Weight Nominal Thickness1 Flexural Modulus Flexural Strength Tensile Modulus Tensile Strength wt % lb/ft2 oz/yd2 gsm in mm ksi GPa ksi MPa ksi GPa ksi MPa 6337 PP 63 0.10 14.75 500 0.015 0.38 3570 24.6 58 402 4010 27.6 111 765 6531 65 0.05 7.40 251 0.006 0.15 4020 27.7 73 505 4900 33.8 140 965 6536 0.07 10.32 350 0.009 0.23 4050 27.9 72 494 4500 31.0 131 903 6538 0.14 19.77 670 0.019 0.48 3540 24.4 47 324 4260 29.4 100 689 7034B PP-Black 70 0.07 10.24 347 0.009 0.23 4400 30.3 83 569 5000 34.5 111 765 6020 PE 60 0.08 11.95 405 0.012 0.30 3600 24.8 54 372 3800 26.2 109 752 6621 66 0.10 13.97 474 0.012 0.30 4000 27.6 55 379 4720 32.5 126 869 68222 68 0.16 23.34 791 0.022 0.56 4060 28.0 55 379 4560 31.4 113 779 5843 PETG 58 0.08 11.85 402 0.008 0.20 3680 25.4 90 621 4400 30.3 137 945 5840B aPET-Black 58 0.09 13.00 441 0.009 0.23 4120 28.4 107 738 5080 35.0 150 1034 5860B PA6-Black 58 0.08 11.48 389 0.010 0.25 3620 25.0 104 717 3970 27.4 108 745 TYPICAL PROPERTIES - UNIDIRECTIONAL FIBERGLASS REINFORCED THERMOPLASTIC TAPE 1 Nominal thicknesses indicated are baseline values that may vary depending on material processing and other variables. TYPICAL PROPERTIES - MULTI-AXIAL LAMINATES 0° Testing Orientation 90° Testing Orientation Product Name Resin Fiber Content Laminate Layers & Orientation Areal Weight Nominal Thickness1 Flexural Modulus Flexural Strength Tensile Modulus Tensile Strength Flexural Modulus Flexural Strength Tensile Modulus Tensile Strength wt % lb/ft2 oz/yd2 gsm in mm ksi GPa ksi MPa ksi GPa ksi MPa ksi GPa ksi MPa ksi GPa ksi MPa 6337 PP 63 0/90 0.20 29.49 1000 0.031 0.79 - - - - 2020 13.9 59.7 412 - - - - 2020 13.9 59.7 412 0/90/0 0.31 44.24 1500 0.045 1.14 2250 15.5 46.4 320 3070 21.2 79.4 547 186 1.3 9.7 67 1330 9.2 39.6 273 0/90/90/0 0.41 58.98 2000 0.057 1.45 2000 13.8 44.0 303 2400 16.5 60.6 418 496 3.4 20.7 143 2210 15.2 56.4 389 6531 65 0/90 0.10 14.80 502 0.014 0.36 - - - - 2240 15.4 60.9 420 - - - - 2240 15.4 60.9 420 0/90/0 0.15 22.20 753 0.020 0.50 2650 18.3 58.3 402 3100 21.4 82.8 571 280 1.9 NB2 NB2 1670 11.5 42.5 293 0/90/90/0 0.21 29.61 1004 0.027 0.68 2260 15.6 51.5 355 2470 17.0 62.2 429 580 4.0 30.4 210 2310 15.9 59.6 411 6536 0/90 0.14 20.71 702 0.021 0.53 - - - - 1980 13.7 60.5 417 - - - - 1980 13.7 60.5 417 0/90/0 0.22 31.06 1053 0.029 0.74 2309 15.9 48.3 333 2730 18.8 81.5 562 245 1.7 13.0 90 1490 10.3 44.3 305 0/90/90/0 0.29 41.41 1404 0.037 0.94 2164 14.9 47 324 2170 15.0 59.6 411 512 3.5 25.4 175 2340 16.1 71.2 491 6538 0/90 0.27 39.54 1341 0.034 0.86 - - - - 2220 15.3 60.0 414 - - - - 2220 15.3 60.0 414 0/90/0 0.41 59.53 2018 0.057 1.44 2825 19.5 40.9 282 2780 19.2 67.6 466 218 1.5 10.2 70 1410 9.7 40.0 276 0/90/90/0 0.55 79.37 2691 0.073 1.85 1880 13.0 32.4 223 2060 14.2 54.0 372 478 3.3 18.0 124 2360 16.3 61.0 421 7034B PP-Black 70 0/90 0.14 20.48 694 0.016 0.40 - - - - 2680 18.5 62.0 427 - - - - 2680 18.5 62.0 427 0/90/0 0.21 30.72 1041 0.028 0.71 1750 12.1 55.9 385 3710 25.6 75.1 518 160 1.1 11.3 78 1440 9.9 36.2 250 0/90/90/0 0.28 40.95 1388 0.036 0.90 1700 11.7 40.4 279 2800 19.3 55.7 384 432 3.0 25.4 175 2350 16.2 52.4 361 6020 PE 60 0/90 0.17 23.90 810 0.023 0.57 - - - - 1830 12.6 52.00 359 - - - - 1830 12.6 52.0 359 0/90/0 0.25 35.86 1216 0.033 0.84 2265 15.6 40.0 276 2740 18.9 68.2 470 181 1.2 10.0 69 1350 9.3 35.3 243 0/90/90/0 0.33 47.81 1621 0.044 1.12 1810 12.5 30.0 207 2000 13.8 48.0 331 502 3.5 22.0 152 1820 12.5 46.0 317 6621 66 0/90 0.19 27.94 947 0.025 0.65 - - - - 2280 15.7 60.0 414 - - - - 2280 15.7 60.0 414 0/90/0 0.29 41.90 1421 0.040 1.01 2490 17.2 37.0 255 2900 20.0 70.0 483 165 1.1 9.7 67 1440 9.9 38.0 262 0/90/90/0 0.39 55.87 1894 0.053 1.35 1810 12.5 29.0 200 2160 14.9 58.0 400 508 3.5 21.0 145 2170 15.0 53.0 365 5843 PETG 58 0/90 0.16 23.70 804 0.020 0.50 - - - - 2050 14.1 59.6 411 - - - - 2050 14.1 59.6 411 0/90/0 0.25 35.55 1205 0.030 0.76 2800 19.3 89.0 614 2900 20.0 78.0 538 397 2.7 NB2 NB2 1580 10.9 42.5 293 0/90/90/0 0.33 47.40 1607 0.039 0.99 2540 17.5 72.0 496 2300 15.9 57.7 398 780 5.4 35.0 241 2170 15.0 63.0 434 5840B aPET-Black 58 0/90 0.18 26.01 882 0.021 0.53 - - - - 2530 17.4 55.3 381 - - - - 2530 17.4 55.3 381 0/90/0 0.27 39.01 1323 0.032 0.82 2986 20.6 91.1 628 3160 21.8 68.7 474 252 1.7 20.0 138 1580 10.9 36.9 254 0/90/90/0 0.36 52.01 1763 0.042 1.07 3065 21.1 73.1 504 2570 17.7 54.2 374 813 5.6 37.0 255 2440 16.8 55.6 383 5860B PA6-Black 58 0/90 0.16 22.95 778 0.021 0.52 - - - - 2190 15.1 56.00 386 - - - - 2190 15.1 56.0 386 0/90/0 0.24 34.43 1167 0.034 0.86 2510 17.3 117.0 807 2760 19.0 63.7 439 657 4.5 22.2 153 1630 11.2 39.7 274 0/90/90/0 0.32 45.91 1556 0.046 1.18 2210 15.2 106.0 731 2090 14.4 45.6 314 1110 7.7 50.8 350 2150 14.8 57.4 396 1 Nominal thicknesses indicated are baseline values that may vary depending on material processing and other variables.

Avient は、指定された比誘電率（ Dk）の材料を1週間でサンプル試作することができ、2～3週間で工場スケールで製 造し、出荷することができます。 ベース樹脂 誘電率（Dk） ET7600- 8031 ET7600- 8027 ET7600- 8025 ET7600- 8037 ET7600- 8019 ET7600- 8028 ET7600- 8026 ET7600- 8044 ET7600- 8029 ET7600- 8041 ET7600- 8045 ET7600- 8036 PPE PPE PPE PPE PPE PPE PPE PPE PPE PPE PPE PPE 3.0 3.1 3.35 3.6 3.8 4.4 4.8 5.28 5.4 5.85 7.0 9.0 EDGETEK TM EDGETEK TM Avient のカスタマイズされた材料設計は、5G基地局のアンテナの進化にどのような優位性をもたらすか 素早い仕様決定と、短いリードタイム - PolyOne は１ 週間以内で指定されたDk値でサンプルを試作し、2～3 週間以内に工場スケールで製品をお届けします。

主要特性 在三个经ISO 13485认证的生产设施生产，在 全球范围内提供质量稳定一致的产品，并增加 供应稳定性 变更控制记录的级别高于CAS编号级别，降低 变更风险 不含动物源性物质和邻苯二甲酸盐 可用作预着色配方或母粒，用于不同的聚合物 注册药品管理档案（III类）和/或医疗器械主 文件 食品接触符合FDA/EU**要求 法规支持 原材料根据以下标准检测： - ISO 10993-1和美国药典 生物学 评估 - 欧洲药典3.1.3/3.1.5（聚烯烃） - 美国药典（聚乙烯） - ICH Q3D 杂质元素 * 设计备注：选择效果颜色时需要仔细考虑零件设计和聚合物流动路径， 从而尽可能减少可见流线。 在不限制本声明的一般性的情况下，不得将埃万特的产品用于旨在用于以下目的的任何医疗器械应用： (1) 接触人体组织或体液长达30天或更长时间； (2)“整形”（整容或重建）手术； (3) 生殖植入物或任何节育器械；或者 (4) 用于支持或维持人类生命的永久性（超过30天）植入式医疗器械中的任何关键组件。